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Green sukuk is a tool to finance climate change which has garnered considerable attention. However, having only recently come into existence has its own set of challenges for this tool that require immediate identification and government intervention to intensify its growth. This study aims to explore the challenges encountered by green sukuk issuers and the structure of a reconciled green sukuk issuance framework to speed up the market’s growth with the right interventions.

The study engaged a qualitative approach via multiple case study interviews with green sukuk issuers and used expert views for data triangulation to generate the findings. A total of four green sukuk issuers participated in the interviews, and for data triangulation purposes, four expert’s opinions and views were considered. The thematic analysis technique is used to report the findings.

It was revealed that amongst the challenges encountered in the green sukuk market are shoddy green taxonomy, difficulty in identifying green assets, it is time-consuming and costly, no compelling benefits and exposure to higher-risk profiles.

This study may be influenced by observer error and observer bias. However, the researchers have taken cautious steps to overcome these issues by following strict case study methodology procedures and triangulating the qualitative research findings with views from green sukuk experts. These interventions increased the rigour and trustworthiness of the results.

This study is amongst the pioneer in Malaysia, exploring challenges in the green sukuk market. The results are relevant to governments, regulators, institutions and central banks to structure the right interventions to counter the challenges. Greater government involvement is required to strengthen the green sukuk market and to spearhead the green agenda.

The paper aims to investigate the effect of Degussa P-25 Titanium Dioxide (TiO₂) nanoparticles on hydrophobicity and self-cleaning ability as a single organic coating on glass substrate.

Two methods have been used to enhance the hydrophobicity on glass substrates, namely, surface modification by using low surface energy isooctyltrimethoxysilane (ITMS) solution and construction of rough surface morphology using Degussa P-25 TiO₂ nanoparticles with simple bottom-up approach. The prepared sol was applied onto glass substrate using dip-coating technique and stoved in the vacuum furnace 350°C.

The ITMS coating with nano TiO₂ pigment has modified the glass substrate surface by achieving the water contact angle as high as 169° ± 2° and low sliding angle of 0° with simple and low-cost operation. The solid and air phase interface has created excellent anti-dirt and self-cleaning properties against dilute ketchup solution, mud and silicon powder.

Findings will be useful in the development of self-cleaning and anti-dirt coating for photovoltaic panels.

Sol method provides the suitable medium for the combination of organic–inorganic network to achieve high superhydrophobicity and optimum self-cleaning ability.

Application of blended organic–inorganic sol as self-cleaning and anti-dirt coating film.

The purpose of this paper is to implement coating system by varying the amount of nano-sized titanium dioxide, (nano-TiO₂) combined with various organic binders and to study the coating effects on the performance of solar cell in terms of temperature and efficiency.

Nano-TiO₂ coatings are developed in two types of binder networks; the combination of methyltrimethoxy silane (MTMS) and nitric acid and the combination of 3-aminopropyl triethoxysilane (APTES) and MTMS. Overall, the formulations method was cost-effective, produces good transparency, clear and managed to dry at room temperature. The coating mixtures were applied onto the glass substrate by using the dip-coating method and the coated substrate were sent for several characterizations.

This study demonstrated that TiO₂ nanoparticle coating in APTES/MTMS matrix showed a thermal-decreasing result on solar cells, where the cell temperature is reduced to 46.81°C (T₂ coating type) from 55.74°C (without coating) after 1-h exposure under 1,000 W/m² irradiance in a solar simulator. Contrary to prior works where solar cell coatings were reported to reduce the cell temperature at the expense of the cell efficiency, the results from this study reported an improved fill factor (FF) of solar cells. From the photovoltaic (PV) characteristics study, the FF for solar cells is increased by approximately 0.2, i.e. 33.3 per cent, for all coatings compared to the non-coated cell.

Findings will be able to contribute in the development of temperature-reducing and efficiency-enhancing coating for PV panels.

A simple dip-coating method provides an even distribution of TiO₂ nanoparticle coating on the glass panel, which is cost-effective and time-efficient to reduce the temperature of solar cell while maintaining its efficiency.

The ability of nano-TiO₂ coatings with a simple fabrication method and the right solution to reduce the surface temperature of solar cells while improving the FF of the cells.

This paper aims to investigate the thermal stability and hydrophobicity of difference alkyl chain of silanes with silicon (Si) micro- and nanoparticles.

Sol-gel methods have been used to design superhydrophobic glass substrates through surface modification by using low-surface-energy Isooctyl trimethoxysilane (ITMS) and Ethyl trimethoxysilane (ETMS) solution. Hierarchical double-rough scale solid surface was built by Si micro- and nanoparticles to enhance the surface roughness. The prepared sol was applied onto glass substrate using dip-coating method and was dried at control temperature of 400°C inside the tube furnace.

The glass substrate achieved the water contact angle as high as 154 ± 2° and 150.4 ± 2° for Si/ITMS and Si/ETMS films, respectively. The Si/ITMS and Si/ETMS also were equipped with low sliding angle as low as 3° and 5°, respectively. The Si micro- and nanoparticles in the coating system have created nanopillars between them, which will suspend the water droplets. Both superhydrophobic coatings have showed good stability against high temperature up to 200°C as there are no changes in WCA shown by both coatings. Si/ITMS film sustains its superhydrophobicity after impacting with further temperature up to 400°C and turns hydrophobic state at 450°C.

Findings will be useful to develop superhydrophobic coatings with high thermal stability.

Sol method provides a suitable medium for the combination of organic-inorganic network to achieve high hydrophobicity with optimum surface roughness.

Application of different alkyl chain groups of silane resin blending with micro- and nanoparticles of Si pigments develops superhydrophobic coatings with high thermal stability.

Services marketing, Market segmentation, Ethnography.

Postgraduate programs, Master in Strategic Marketing and Master in Business Administration.

One of the signs of an increase in religion awareness of Indonesian society is a high demand on Musholla in public area. While other shopping malls just provide a normal standard room for prayer, Senayan City has become a pioneer in introducing an excellent facility of a prayer room. In services marketing, one of the substantial matters to consider is physical evidence, or in other words service setting or servicescape. Musholla is one of the intangible aspects, which depicts services in shopping malls in Indonesia. There are three variables that distinguish visitors' types, such as time spent, liturgical compliance level and concerns for cleanliness/hygiene.

The objective of this case study is to give deeper comprehension about services marketing to students in a practical way. This case study illustrates that a company is capable of creating a strong brand by acknowledging consumer needs and providing extra benefits. Besides, students are also required to analyze diverse consumer needs as each segment has its own needs. The use of ethnography as an approach shows that such a contemporary method can capture dynamic behaviours and deeper insight on consumer needs.

Teaching notes are available.

This paper introduced the simple synthesis process of self-cleaning coating with fog-resistance property using hydrophobic polydimethylsiloxane (PDMS) polymer and nano-calcium carbonate (nano-CaCO₃) and titanium dioxide (TiO₂).

The synthesis method of PDMS/nano-CaCO₃-TiO₂ is based on sol-gel process. The crosslinking between PDMS and nanoparticles is driven by the covalent bond at temperature of 50°C. The 3-Aminopropyltriethoxysilane is used as binder for nanoparticles attachment in polymer matrix. Two fabrication methods are used, which are dip- and spray-coating methods.

The prepared coated glass fulfilled the requirement of standard self-cleaning and fog-resistance performance. For the self-cleaning test BS EN 1096-5:2016, the coated glasses exhibited the dust haze value around 20%–25% at tilt angle of 10°. For the antifog test, the coated glasses showed the fog haze value were below 2% and the gloss value were above 85%. The obtained results completely achieved the standard antifog value ASTM F659-06 protocol.

Findings will provide an infrastructure support for the building glass to enhance building’s energy efficiency, cleaning performance and friendly environment.

This study proposed the simple synthesis method using hydrophobic polymer and nano-CaCO₃ and nano-TiO₂, which can achieve optimum self-cleaning property at low tilt angle and fog-resistance performance for building glass.

The research findings have high potential for building company, cleaning building company and government sector. The proposed project capable to reduces the energy consumption about 20% per annum due to labor cost, time-consuming and safety during manual cleaning.

The novel method to develop self-cleaning coating with fog-resistance using simple synthesis process and fabrication method for building glass application.

The purpose of this paper is to introduce the simple synthesis process of thermal-insulation coating by using three different nanoparticles, namely, nano-zinc oxide (ZnO), nano-tin dioxide (SnO₂) and nano-titanium dioxide (TiO₂), which can reduce the temperature of solar cells.

The thermal-insulation coating is designed using sol-gel process. The aminopropyltriethoxysilane/methyltrimethoxysilane binder system improves the cross-linking between the hydroxyl groups, -OH of nanoparticles. The isopropyl alcohol is used as a solvent medium. The fabrication method is a dip-coating method.

The prepared S1B1 coating (20 Wt.% of SnO₂) exhibits high transparency and great thermal insulation property where the surface temperature of solar cells has been reduced by 13°C under 1,000 W/m² irradiation after 1 h. Meanwhile, the Z1B2 coating (20 Wt.% of ZnO) reduced the temperature of solar cells by 7°C. On the other hand, the embedded nanoparticles have improved the fill factor of solar cells by 0.2 or 33.33%.

Findings provide a significant method for the development of thermal-insulation coating by a simple synthesis process and low-cost materials.

The thermal-insulation coating is proposed to prevent exterior heat energy to the inside solar panel glass. At the same time, it can prevent excessive heating on the solar cell’s surface, later improves the efficiency of solar cell.

This study presents a the novel method to develop and compare the thermal-insulation coating by using various nanoparticles, namely, nano-TiO₂, nano-SnO₂ and nano-ZnO at different weight percentage.

This paper aims to design the nano-titanium dioxide (TiO₂) coating system which has superhydrophilic property, self-cleaning mechanism and antifog property as well as strong adhesion on glass substrate.

Two hydrophilic materials have been used such as TiO₂ nanoparticles as fillers and hydrophilic copolymer, Pluronic F-127 by using simple sol–gel approach. The prepared solution was applied onto glass through dip- and spray-coating techniques and then left for drying at ambient temperature.

The nano-TiO₂ superhydrophilic coating has achieved the water contact angle of 4.9° ± 0.5°. The superhydrophilic coating showed great self-cleaning effect against concentrated syrup and methylene blue where thin layer of water washes the dirt contaminants away. The nano-TiO₂ coating exhibits great antifog performance that maintains high transparency of around 89% when the coated glass is placed above hot-fog vapor for 10 min. The fog droplets were condensed into water film which allowed the transmission of light through the glass. The strong adhesion of coated glass shows no total failure at scratch profile when impacted with scratch load of 500, 800 and 1,200 mN.

Findings will be useful in the development of self-cleaning superhydrophilic coating that is applicable on building glass and photovoltaic panel.

The developed nano-TiO₂ coating is developed by the combination of hydrophilic organic copolymer–inorganic TiO₂ network to achieve great superhydrophilic property, optimum self-cleaning ability and supreme antifog performance.

The findings will be useful for residents in building glass window where the application will reduce dust accumulation and keep the glass clean for longer period.

The synthesis of nano-TiO₂ superhydrophilic coating which can be sprayed on large glass panel and cured at ambient temperature.

The purpose of this study is to systematically examine and compare the growth of halal tourism and hospitality in OIC and non-OIC countries based on published literature.

A critical systematic review of 154 academic papers published in the last decade involving halal tourism in OIC and non-OIC countries constituted the sample for this study. The study uses an integrated antecedents, decisions and outcomes and theories, contexts and methods framework, and a coding protocol based on the preferred reporting items for systematic reviews and meta-analyses.

Halal tourism is not developed in non-OIC countries where Islam does not predominate, which represents an opportunity for many countries to incorporate new trends in their tourism offerings. This research increases awareness of non-OIC destinations to welcome a growing halal tourism market, enabling them to foster innovation to meet new demands for Muslim travelers.

This study is different as we compare the pertinent needs that are based on religion in various geographical locations while focusing on tourism and hospitality research in Islamic and non-Islamic nations.

The main objective of this paper is to analyze works of literature on SRI sukuk to highlight the potential for these kinds of instruments in financing more sustainable financial systems (SFSs). The analysis mainly accentuates a dearth of knowledge on the various challenges and opportunities in the realm of SRI.

This paper pioneers the bibliometric and systematic literature review of the development of the SRI sukuk from 2016 (the first available year in the field) to and 2021.

The study findings highlighted several pertinent SRI issues: the lack of standardization due to the different interpretations of Shariah and green, the lack of retail investors, which inevitably produce a lack of liquidity in the secondary market, thus limiting their growth, its funding allocation’ close resemblance to green financing, and the role of Malaysia and Indonesia as global sustainable financial hubs to stimulate the development of Shariah-compliant sustainable instruments and contribute to the international debate about the building of a global standardized framework related to sustainable investments.

The integration of the environmental principles of a green bond with the Shariah-compliant financial structure of a sukuk, the SRI sukuk, represents a vital crossroad in both sustainable and Islamic finance. Social-impact sukuk and green sukuk is an undervalued instrument that could play an important role in financing a more sustainable economic and financial system, including Islamic investing. This kind of instruments, which is based on a “pay for success” principle in the conventional layout, perfectly fit with the profit-and-lost sharing’s (PLS's) ethicality, the sustainability principles of Islamic finance and the religious principles of Islamic law.