Search Results - "Kok-Keong Chong"

Elucidating the structural, catalytic, and antibacterial traits of Ficus carica and Azadirachta indica leaf extract‐mediated synthesis of the Ag/CuO/rGO nanocomposite by Fayyaz, Zirwa, Farrukh, Muhammad Akhyar, Ul‐Hamid, Anwar, Chong, Kok‐Keong

“…The present exploration demonstrates the efficient, sustainable, cost‐effective, and environment‐friendly green approach for the synthesis of silver (Ag)‐doped…”
Get full text

Performance study of water-cooled multiple-channel heat sinks in the application of ultra-high concentrator photovoltaic system by Tan, Woei-Chong, Chong, Kok-Keong, Tan, Ming-Hui

“…[Display omitted] •Active cooling system using multiple-channel heat sink for CPV cells at 1800 suns.•CFD program using fine mesh has the highest uncertainty…”
Get full text

Facile synthesis of zwitterionic surfactant‐assisted molybdenum oxide/reduced graphene oxide nanocomposite with enhanced photocatalytic and antimicrobial activities by Ishtiaq, Aisha, Farrukh, Muhammad Akhyar, Rehman, Atta ur, Karim, Shafqat, Chong, Kok‐Keong

“…Reduced graphene oxide (rGO) was synthesized by chemical reduction method and molybdenum oxide (MoO3) was synthesized by sol–gel method, separately. Molybdenum…”
Get full text

Photoluminescence emission behavior on the reduced band gap of Fe doping in CeO2-SiO2 nanocomposite and photophysical properties by Farrukh, Muhammad Akhyar, Butt, Komal Mehmood, Chong, Kok-Keong, Chang, Wei Sea

“…Fe/CeO2-SiO2 nanocomposite was synthesized via hydrothermal method. Bond length of nanocomposite was determined through FTIR analysis, while Raman analysis…”
Get full text

Facile Synthesis of Gd2O3/rGO Nanocomposite: Optical, Thermal, Morphological, Structural, and Catalytic Studies by Akbar, Shahana, Farrukh, Muhammad Akhyar, Chong, Kok-Keong

“…Modified Hummers’ method was employed for the synthesis of graphene oxide, which was used as a precursor for the synthesis of reduced graphene oxide by using…”
Get full text

Heavy Metal Removal from Aqueous Solutions Using Biomaterials and/or Functional Composites: Recent Advances and the Way Forward in Wastewater Treatment Using Digitalization by Tonni Agustiono Kurniawan, Wai-Hung Lo, Xue Liang, Hui Hwang Goh, Mohd Hafiz Dzarfan Othman, Kok-Keong Chong, Ayesha Mohyuddin, Axel Olaf Kern, Kit Wayne Chew

“…Due to its low cost, over the past decades, biosorption technology has been extensively carried out to treat heavy metal-laden wastewater using biosorbents…”
Get full text

Design and construction of active daylighting system using two-stage non-imaging solar concentrator by Chong, Kok-Keong, Onubogu, Nneka Obianuju, Yew, Tiong-Keat, Wong, Chee-Woon, Tan, Woei-Chong

“…[Display omitted] •2S-NISC has low rim angle, high tolerance to pointing error, uniform illumination.•A reflective area of 0.2m2 is capable of illuminating an…”
Get full text

Review of Active and Passive Daylighting Technologies for Sustainable Building by Onubogu, Nneka Obianuju, Chong, Kok-Keong, Tan, Ming-Hui

“…According to the International Energy Agency, nearly 20% of worldwide electricity is used up by lighting. This is equal to the total electricity nuclear power…”
Get full text

The Impact of Different Green Synthetic Routes on the Photocatalytic Potential of FeSnO2 for the Removal of Methylene Blue and Crystal Violet Dyes under Natural Sunlight Exposure by Arifa Shaukat, Muhammad Akhyar Farrukh, Kok-Keong Chong, Rabia Nawaz, Muhammad Tariq Qamar, Shahid Iqbal, Nasser S. Awwad, Hala A. Ibrahium

“…FeSnO2 nanocomposites were synthesized via the green method using aqueous leaf extracts of Lawsonia inermis and Phyllanthus embilica plants. The role of…”
Get full text

Novel Algorithm for Improving Tracking Accuracy of Open-Loop Mobile Sun-Tracking System via Different Timing Control Scheme by Lai, An-Chow, Ho, Ming-Cheng, Chong, Kok-Keong, Tan, Ming-Hui, Lim, Boon-Han, Kurniawan, Tonni Agustiono

“…This paper proposes a mobile sun-tracking (MST) system to track the sun on the moving vehicle. We have developed a novel MST algorithm using general…”
Get full text

Rectangular Glass Optical Fiber for Transmitting Sunlight in a Hybrid Concentrator Photovoltaic and Daylighting System by Tan, Chin-Joo, Tavassoli, Seyed Hassan, Chong, Kok-Keong, Aslian, Afshin, Hazave, Omid Badkoobe

“…In this paper, we propose to use glass optical fibers with a rectangular cross-section for the application in a concentrator photovoltaic and daylighting…”
Get full text

Comprehensive Methodology to Evaluate Parasitic Energy Consumption for Different Types of Dual-Axis Sun Tracking Systems by Tan, Ming-Hui, Wang, Tze-Koon, Wong, Chee-Woon, Chong, Kok-Keong, Lim, Boon-Han, Yew, Tiong-Keat, Tan, Woei-Chong, Lai, An-Chow

“…A dual-axis sun tracking system is an essential strategy to maximize the optical efficiency of harnessing solar energy. However, there is no significant study…”
Get full text

Synergy study on charge transport dynamics in hybrid organic solar cell: Photocurrent mapping and performance analysis under local spectrum by Hong, Kai Jeat, Tan, Sin Tee, Chong, Kok-Keong, Lee, Hock Beng, Ginting, Riski Titian, Lim, Fang Sheng, Yap, Chi Chin, Tan, Chun Hui, Chang, Wei Sea, Jumali, Mohammad Hafizuddin Hj

“…Charge transport dynamics in ZnO based inverted organic solar cell (IOSC) has been characterized with transient photocurrent spectroscopy and localised…”
Get full text

Challenges and opportunities for biochar to promote circular economy and carbon neutrality by Kurniawan, Tonni Agustiono, Othman, Mohd Hafiz Dzarfan, Liang, Xue, Goh, Hui Hwang, Gikas, Petros, Chong, Kok-Keong, Chew, Kit Wayne

“…Biochar, derived from unused biomass, is widely considered for its potential to deal with climate change problems. Global interest in biochar is attributed to…”
Get full text

Remediation technologies for contaminated groundwater due to arsenic (As), mercury (Hg), and/or fluoride (F): A critical review and way forward to contribute to carbon neutrality by Kurniawan, Tonni Agustiono, Lo, Waihung, Liang, Xue, Goh, Hui Hwang, Othman, Mohd Hafiz Dzarfan, Chong, Kok-Keong, Chew, Kit Wayne

“…[Display omitted] •As, Hg, and F in the groundwater threatens the environment and public health.•Membrane filtration is powerful to completely remove As and F…”
Get full text

A review on various configurations of hybrid concentrator photovoltaic and thermoelectric generator system by Sripadmanabhan Indira, Sridhar, Vaithilingam, Chockalingam Aravind, Chong, Kok-Keong, Saidur, R., Faizal, M., Abubakar, Shamsu, Paiman, Suriati

“…Concentrator photovoltaics (CPV) is of much intrigue among all photovoltaic (PV) technologies because it replaces the expensive PV cell material with cheaper…”
Get full text

Integration of an on-axis general sun-tracking formula in the algorithm of an open-loop sun-tracking system by Chong, Kok-Keong, Wong, Chee-Woon, Siaw, Fei-Lu, Yew, Tiong-Keat, Ng, See-Seng, Liang, Meng-Suan, Lim, Yun-Seng, Lau, Sing-Liong

“…A novel on-axis general sun-tracking formula has been integrated in the algorithm of an open-loop sun-tracking system in order to track the sun accurately and…”
Get full text

A Systematic Method of Interconnection Optimization for Dense-Array Concentrator Photovoltaic System by Siaw, Fei-Lu, Chong, K.-K.

“…This paper presents a new systematic approach to analyze all possible array configurations in order to determine the most optimal dense-array configuration for…”
Get full text

Performance analyses of various commercial photovoltaic modules based on local spectral irradiances in Malaysia using genetic algorithm by Seera, Manjeevan, Tan, Choo Jun, Chong, Kok-Keong, Lim, Chee Peng

“…A novel comprehensive methodology integrated with genetic algorithm (GA) has been formulated by accounting for local spectral irradiance and the specifications…”
Get full text

Mathematical modelling, performance evaluation and exergy analysis of a hybrid photovoltaic/thermal-solar thermoelectric system integrated with compound parabolic concentrator and parabolic trough concentrator by Sripadmanabhan Indira, Sridhar, Aravind Vaithilingam, Chockalingam, Narasingamurthi, Kulasekharan, Sivasubramanian, Ramsundar, Chong, Kok-Keong, Saidur, R.

“…•A new type of CPC and PTC based CPV/T-STEG hybrid system is proposed.•A steady-state 1-D optical-thermal-electrical coupled model has been elaborated.•The…”
Get full text