Article
Engineering, Environmental
Wenjing Ma, Wenxuan Cao, Tao Lu, Ranhua Xiong, Chaobo Huang
Summary: A porous hybrid membrane (ZIF-8 @PAN) was designed by water etching of sacrificial polyvinylpyrrolidone (PVP) and in-situ growth of ZIF-8 nanoparticles onto the fiber, which exhibited high separation efficiency and flux for oil/water emulsion and water purification. The presence of ZIF-8 nanoparticles improved the membrane's underwater superoleophobicity and emulsion demulsification efficiency. The membrane also demonstrated antibacterial activity, chemical stability, and effective separation of complex wastewater.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Polymer Science
Jiahui Kan, Zhixuan Zhang, Liang Ren, Jian Han, Huixin Zhang, Jihui Li, Hong Wu, Jianxin Chen
Summary: The main purpose of this work is to improve the hydrophilicity and antifouling properties of hydrophobic PVDF microfiltration membranes through modification. The as-prepared PVDF-PG/PEI/CTS membranes showed a smaller water contact angle and significantly increased pure water flux. The modified membrane also exhibited high stability and efficiency in the separation of oil-in-water emulsions.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Engineering, Chemical
Shuangshuang Li, Liyun Zhang, Xiangying Yin, Yuqi Wang, Xiao Guo, Yi He
Summary: This study successfully fabricated a photocalytic self-cleaning nanofibrous membrane with remarkable antifouling and photocatalytic degradation performance. The membrane showed high efficiency in purifying oily wastewater and water, making it potentially valuable for practical applications.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Review
Environmental Sciences
Syarifah Nazirah Wan Ikhsan, Norhaniza Yusof, Farhana Aziz, Ahmad Fauzi Ismail, Juhana Jaafar, Wan Norharyati Wan Salleh, Nurasyikin Misdan
Summary: The discharge of oily wastewater in industrial processes has significantly deteriorated water quality and posed negative impacts on human health. Traditional water treatment methods are inefficient and not applicable for oil/water emulsion separation, highlighting the urgent need for more efficient methods and materials to address this issue. Superwetting materials that repel oil while allowing water to pass through have been extensively researched to enable solid surfaces to separate oily emulsions with minimal energy consumption, showing promising potential for future applications in oily wastewater treatment.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Nanoscience & Nanotechnology
Hao Yang, Baikang Zhu, Lijing Zhu, Zhixiang Zeng, Gang Wang, Zhu Xiong
Summary: The study fabricated a rough and porous surface for high loading of the hydrophilic photo-Fenton catalyst, improving the oil/water emulsion separation and antifouling performance of the membranes.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Engineering, Chemical
Ningyuan Chen, Jie Zhao, Lei Shi, Atsushi Goto, Rong Wang
Summary: The use of water-insoluble diluents in the thermally induced phase separation (TIPS) process can eliminate the effect of diluent outflow, while the addition of hydrophilic non-solvents can improve the surface porosity and permeability of polyvinylidene fluoride ultrafiltration membranes. The study also found that the simultaneous addition of both types of additives can significantly enhance the membrane's permeability.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Environmental
Xueling Wang, Kuo Sun, Guoquan Zhang, Fenglin Yang, Shihong Lin, Yingchao Dong
Summary: The study reports a novel method of efficiently separating oil nano-emulsions using zirconia membranes with sub-100 nm pores and superoleophobic properties. The membrane fouling behavior is dominated by a combined model of intermediate pore blocking and cake filtration, with effective mitigation under high pH conditions. Overall, the zirconia membrane demonstrates high rejection efficiency for nano-sized oil droplets and consistent separation performance for real oily wastewaters.
Article
Chemistry, Multidisciplinary
Wei Yao, Jian Tan, Xiaodong Zhu, Guanglei Liu, Zhenglong Xu, Mingxin Ye, Jianfeng Shen
Summary: Inspired by leaf structure, a carbon felt/PVA solar-driven device was developed for the separation of versatile oily wastewater. This device exhibits superior solar energy absorption and vapor release capacity, enabling efficient purification of different types of wastewater, including high concentration oil-water emulsions and acidic/alkaline wastewater.
CELL REPORTS PHYSICAL SCIENCE
(2022)
Article
Engineering, Chemical
Huilin Zhu, Zheng Chen, Lanlan Qin, Lizhi Zhang, Jian Zhou
Summary: This study investigates the improvement of surface hydrophilicity of membranes for effectively dealing with membrane fouling in water treatment processes. The results show that the grafting ratio of zwitterionic polymer significantly affects the surface morphology and hydration ability of the membrane.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Chemistry, Physical
Chunmei Gao, Hongyu Chen, Shenghui Liu, Yunqing Xing, Shifeng Ji, Jinchao Chen, Jiajian Chen, Peng Zou, Jiaonan Cai
Summary: A metal-polyphenol networks (MPNs) coating was formed on the surface of polyethersulfone (PES) membrane through layer-by-layer assembly method, enhancing the membrane's structure and permeability. The modified membrane exhibited improved microstructure, surface properties, flux, and fouling resistance compared to bare PES membrane.
SURFACES AND INTERFACES
(2021)
Article
Chemistry, Physical
Yingqing Zhan, Guiyuan Zhang, Qingying Feng, Wei Yang, Jiaxin Hu, Xin Wen, Yucheng Liu, Shirui Zhang, Ao Sun
Summary: A durable super-wetting composite membrane was prepared for the synergistic treatment of oil-in-water emulsions and dye, showing stable super-wetting performance and separation efficiency under high-temperature and corrosive environments. This work provides an alternative platform for treating complicated oily wastewater in harsh environments.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Review
Engineering, Environmental
Abdul Halim, Lusi Ernawati, Maya Ismayati, Fahimah Martak, Toshiharu Enomae
Summary: This paper reviews the current research trend of using cellulose as a membrane material for purifying oily wastewater. It introduces three typical biostructures: superhydrophobic, underwater superoleophobic, and Janus surfaces, and applies their characteristics to improve membrane performance. The study also focuses on the biodegradability and sustainability of cellulose. The principles, mechanisms, fabrication processes, and membrane performances are summarized and compared, and future outlook is discussed.
FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING
(2022)
Article
Nanoscience & Nanotechnology
Mengyuan Li, Xue Gao, Xueqin Wang, Shaojuan Chen, Jianyong Yu
Summary: The study presents a method for synthesizing flexible silica nanofiber/nanobead (SNB) membranes using electrospinning and electrospraying techniques. The membranes exhibit superhydrophilicity and underwater superoleophobicity, allowing for efficient separation of SSEs with high permeate flux and excellent antifouling performance. The SNB membranes also demonstrate robust mechanical properties and good reusability, providing a facile method for fabricating ceramic microfiltration membranes for industrial and domestic wastewater separation.
ACS APPLIED NANO MATERIALS
(2021)
Article
Engineering, Environmental
Yu-Ling Yang, Man-Man Li, Li-Jing Zhu, Gang Wang, Zhi-Xiang Zeng
Summary: This study successfully addressed the oil fouling issue of PVDF membranes by engineering a strong underwater superoleophobic surface. PVDF-g-PDMAEMA membranes were fabricated and their underwater superoleophobicity was enhanced through surface zwitterionicalization. The modified membranes exhibited excellent separation performance for oil/water emulsions and showed superior resistance to oil fouling.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Environmental
Tutuk Djoko Kusworo, Andri Cahyo Kumoro, Nita Aryanti, Dani Puji Utomo
Summary: The study on novel PES nanohybrid membranes incorporating rGO and ZnO nanoparticles demonstrated significant improvement in membrane structure and performance, showing enhanced pollutant reduction and flux recovery ratio compared to conventional PES membranes.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Energy & Fuels
Siripit Songtawee, Wasawat Kraithong, Chalida Klaysom, Kajornsak Faungnawakij
Summary: This study focuses on the production of 5-Hydroxymethylfurfural (HMF) from fructose dehydration using various organic acids as catalytic promoters. Acetic acid was found to be the most effective promoter in this system. The study also identified the optimum reaction conditions using response surface methodology.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Engineering, Chemical
Reshma Lakra, Muhammad Roil Bilad, Malini Balakrishnan, Subhankar Basu
Summary: A new thin film composite (TFC) forward osmosis (FO) membrane was prepared by interfacial polymerization, which showed improved water flux and anti-fouling properties. Various cleaning agents were tested for fouling removal, and the Cu@FO-0.5 FO membrane was found to be effective in treating drinking water and wastewater sources.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2023)
Review
Materials Science, Textiles
Fitriani Fitriani, Muhammad Roil Bilad, Sri Aprilia, Nasrul Arahman
Summary: Biodegradable film-based packaging is a current concern to replace petroleum-based packaging due to its negative impact on the environment.
JOURNAL OF NATURAL FIBERS
(2023)
Article
Chemistry, Multidisciplinary
Ali M. Abdel-Mageed, Bunyarat Rungtaweevoranit, Sarawoot Impeng, Joachim Bansmann, Jabor Rabeah, Shilong Chen, Thomas Haering, Supawadee Namuangrak, Kajornsak Faungnawakij, Angelika Brueckner, R. Juergen Behm
Summary: Elucidating the reaction mechanism of CO oxidation using a molecularly defined copper single-atom catalyst supported by UiO-66 metal-organic framework (Cu/UiO-66) was achieved through a combination of in situ/operando spectroscopies, kinetic measurements, and density-functional-theory-based calculations. The study identified the active site, reaction intermediates, and transition states of the dominant reaction cycle, as well as changes in oxidation/spin state during the reaction. The reaction involves the continuous dissociation of adsorbed O-2, leading to the formation of an O atom connecting the Cu center with a neighboring Zr4+ ion as the rate-limiting step.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Engineering, Chemical
Grace Gan Sze Yin, Nur Fatin Aqilah, Normi Izati Mat Nawi, Shafiq Mohd Hizam, Nik Abdul Hadi Md Nordin, Muhammad Roil Bilad, Zulfan Adi Putra, Juhana Jaafar, Norhaniza Yusof, Nurfaizey Abdul Hamid, Nadzirah Mohd Mokhtar
Summary: The performance of membrane distillation (MD) in seawater desalination can be improved by enhancing the material properties and process parameters. This study investigated the effects of hydrophobic silica loading on the properties and MD performance of a polyvinylidene difluoride-based membrane in seawater desalination, and performed a sensitivity analysis. It was found that incorporation of hydrophobic silica improved the hydrophobicity of the membrane and increased the number of surface pores, resulting in improved flux and high salt rejection. The optimized membrane was 73% more efficient than the neat membrane.
CHEMICAL ENGINEERING & TECHNOLOGY
(2023)
Article
Environmental Sciences
Fadhlul Wafi Awg Kapli, Fatin Amanina Azis, Hazwani Suhaimi, Norazanita Shamsuddin, Pg Emeroylariffion Abas
Summary: This paper examines the feasibility of an open-pond rainwater harvesting system for ablution purposes, assessing the quality of harvested rainwater and developing a model to evaluate system performance. The model can be applied to any locale by inputting local meteorological data. Findings indicate that the harvested rainwater can be safely used for ablution, despite its slightly acidic pH below 6.5. The system's reliability is 62.5% (228 days per year) at a 1.0 m depth with the existing pond configuration, saving 345 m(3) of water, which is 60.7% of the total demand.
Review
Environmental Sciences
Sharjeel Waqas, Noorfidza Yub Harun, Nonni Soraya Sambudi, Muhammad Roil Bilad, Kunmi Joshua Abioye, Abulhassan Ali, Aymn Abdulrahman
Summary: A rotating biological contactor (RBC) is a widely used and efficient attached-growth biological wastewater treatment system. It utilizes rotating discs to support microbial growth and remove pollutants from wastewater. The advantages of RBC include its simplicity, reliability, and low energy consumption. It has potential for integration with other technologies and can provide sustainable solutions for wastewater management in decentralized and remote areas.
Article
Green & Sustainable Science & Technology
Afiq Mohd Laziz, Chong Yang Chuah, Jens Denecke, Muhammad Roil Bilad, Ku Zilati Ku Shaari
Summary: A microchannel reactor improves mass and heat transfer by creating a high area-to-volume ratio and enhancing mixing through the vortices inside the slug. This study investigated mass transfer using a cross-junction microchannel and observed oil concentration inside the slug using computational fluid dynamics. The results showed oil concentration accumulation in the slug's rear and front regions, and the creation of dead zones due to the formation of four vortices. Optimum flow rate and slug formation significantly influenced mass transfer at low and high flow rates, respectively.
Article
Environmental Sciences
Ensan Waatriah E. S. Shahrin, Nur Alimatul Hakimah Narudin, Nurulizzatul Ningsheh M. Shahri, Muhammad Nur, Jun-Wei Lim, Muhammad Roil Bilad, Abdul Hanif Mahadi, Jonathan Hobley, Anwar Usman
Summary: This study systematically investigated the adsorptive removal and dynamic interaction of three pharmaceutical pollutants (rifampicin, streptomycin, and ibuprofen) onto chitosan. The results showed that chitosan derived from mud-crab shells could be a potential practical and economical adsorbent for removing pharmaceutical compounds from wastewater. The adsorption mechanism was proposed based on spectroscopic analyses and thermograms.
EMERGING CONTAMINANTS
(2023)
Review
Engineering, Environmental
Ahmed Yusuf, Hussein Kehinde Amusa, Jamiu Olanrewaju Eniola, Adewale Giwa, Oluwadamilola Pikuda, Abdallah Dindi, Muhammad Roil Bilad
Summary: This article critically reviews the opportunities, challenges, and future trends in the application of non-thermal plasma (NTP) technology in water purification. It introduces different plasma methods and focuses on NTP due to its low energy requirement. Recent strategies for NTP application in water treatment are presented, along with analysis of the opportunities and challenges. The future trend of NTP application in water treatment is projected, and possible research directions are proposed.
CHEMICAL ENGINEERING JOURNAL ADVANCES
(2023)
Article
Engineering, Environmental
Pongkarn Chakthranont, Sarinya Woraphutthaporn, Chotitath Sanpitakseree, Kasempong Srisawad, Kajornsak Faungnawakij
Summary: A scalable HMFOR process for continuous FDCA production has been developed, achieving unprecedented FDCA production rate and space-time yields. The process demonstrated exceptional stability and comparable quality to commercial products.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Aisyah Farhanah Abdul Majid, Rosmaya Dewi, Nurulizzatul Ningsheh M. Shahri, Ensan Waatriah E. S. Shahrin, Eny Kusrini, Norazanita Shamsuddin, Jun-Wei Lim, Sutarat Thongratkaew, Kajornsak Faungnawakij, Anwar Usman
Summary: In this study, the kaolin clay was activated using a strong base solution, which improved its surface characteristics and adsorption performance. The alkali activation increased the surface area of the kaolinite particles and enhanced the adsorption capacity for the antibiotic rifampicin. The adsorption was mainly attributed to weak electrostatic and hydrogen bonding interactions between the drug and the kaolinite surfaces.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Review
Energy & Fuels
Jia Min Woon, Kuan Shiong Khoo, Mehdi Akermi, Meznah M. Alanazi, Jun Wei Lim, Yi Jing Chan, Pei Sean Goh, Boredi Silas Chidi, Man Kee Lam, Juliana Zaini, Muhammad Roil Bilad, Yuguang Zhou, Nurul Tasnim Sahrin, Fatima Musa Ardo
Summary: This review paper provides a detailed introduction to the mechanisms of biological methods and electrochemical methods, as well as the enzymes involved in biohydrogen production from microalgae. The benefits and drawbacks of each technique are summarized, and the biohydrogen yields from each method are compared based on recent studies. Furthermore, this review addresses the key factors influencing biohydrogen yields and highlights the main shortcomings encountered. Lastly, solutions to enhance biohydrogen production and future prospects for sustainable biohydrogen production from microalgae are systematically discussed.
Article
Materials Science, Multidisciplinary
Abdelslam Elsir Elsiddig Mohamednour, Nik Abdul Hadi Md Nordin, Muhammad Roil Bilad, Siti Nur Alwani Shafie, Shafiq Mohd Hizam, Normi Izati Mat Nawi
Summary: In porous mixed matrix membrane formation, the effect of filler/additive loading on membrane surface properties, especially pore size, porosity, and hydrophilicity, is essential. This study quantifies the correlation between filler loading and pore size, porosity, and hydrophilicity in porous membranes. It was found that hydrophobic silica loading significantly affects pore size and porosity, while hydrophilic silica loading is crucial in determining contact angle and porosity. The developed models were validated and shown to be reliable.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Thitiwut Sukprom, Pooripong Somchuea, Sarannuch Sringam, Thongthai Witoon, Metta Chareonpanich, Pawin Iamprasertkun, Kajornsak Faungnawakij, Gunther Rupprechter, Anusorn Seubsai
Summary: This study investigated the direct conversion of methane (CH4) to value-added hydrocarbons (C2+) using a hybrid catalyst. The hybrid catalyst consisted of Ni/Al2O3 as the first catalyst layer to convert CH4 to carbon monoxide and K-Co/Al2O3 as the second catalyst layer to convert carbon monoxide to C2+. The hybrid catalyst exhibited effective performance at a relatively low temperature of 490 degrees C, compared to other catalysts used in methane oxidative coupling reactions. The study explored the effects of different operating conditions and found that the highest C2+ yield of 4.3% was achieved at a reactor temperature of 490 degrees C. The addition of K promoter played a crucial role in enhancing C2+ formation. The proposed mechanism for the reaction using the hybrid catalyst was described, and the stability of the catalyst was observed to be excellent during a 24-hour time-on-stream test.
REACTION CHEMISTRY & ENGINEERING
(2023)