Article
Chemistry, Multidisciplinary
Jayakaran Pachiyappan, Gnanasundaram Nirmala, Selvaraju Sivamani, Rajakumar Govindasamy, Muthu Thiruvengadam, Marina Derkho, Pavel Burkov, Aleksey Popovich, Vera Gribkova
Summary: Algal biomass synthesised nanocomposites show great potential in the removal of dyes, as proven by their high efficiency in removing RhB and MB dyes.
Article
Environmental Sciences
Melek Koc Kesir, Munevver Sokmen, Zekeriya Biyiklioglu
Summary: The study focused on dye sensitization of TiO2 with four different metallophthalocyanine derivatives, achieving successful photocatalytic reduction of Cr(VI) and degradation of AMX. Among the catalysts, ZnPc-TiO2 showed significant effectiveness in Cr(VI) photoreduction. However, all catalysts exhibited lower degradation rates for AMX under the tested conditions.
Article
Chemistry, Physical
Fellipe Magioli Cadan, Caue Ribeiro, Eduardo Bessa Azevedo
Summary: This study optimized the synthesis of g-C3N4 using the Response Surface Methodology and successfully prepared g-C3N4:WO3 heterojunctions, demonstrating good materials homogenization and high photocatalytic activity. A mechanism for the heterostructure photocatalysis was proposed based on theoretical and experimental results.
APPLIED SURFACE SCIENCE
(2021)
Article
Engineering, Environmental
Rafaely X. de S. Furtado, Carolina A. Sabatini, Marcelo Zaiat, Eduardo Bessa Azevedo
Summary: The study evaluated the degradation of PFOS in water and found that TiO2/UV heterogeneous photocatalysis conditions can effectively remove PFOS, which affects the ecotoxicity of organisms.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Engineering, Environmental
Mahmoud Samy, Mohamed Gar Alalm, Manabu Fujii, Mona G. Ibrahim
Summary: Nickel has been identified as an efficient dopant for enhancing the electronic structure of metal-organic frameworks (MOFs) to improve the photocatalytic degradation of carbofuran. The optimal conditions for carbofuran degradation were found to be a Ti: Ni molar ratio of 1:1, a pH of 11, an irradiation intensity of 104.6 W/m2, and a catalyst loading of 0.44 g/L.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Minaam Hussaini, Muhammad Vohra
Summary: The use of a photocatalysis-cum-adsorption system based on LDH-TiO2 showed promising results in removing aqueous phase selenocyanate, with high selenium removal efficiency achieved through optimization exercises.
Article
Chemistry, Multidisciplinary
Q. L. Reyes-Morales, V. E. Reyes-Cruz, A. Trujillo Estrada, J. A. Cobos-Murcia, G. Urbano Reyes, M. Perez Labra, A. Manzo Robledo, S. Vazquez Bautista, E. Ramirez Meneses
Summary: The effect of two different anionic membranes on manganese deposition was investigated in this study. The results showed that the AMI membrane reduced more manganese and resulted in more metallic deposition and low-solubility manganous by-products compared to the AMX membrane at current densities below -100 A m(-2). However, both membranes exhibited similar behaviors and reached maximum current efficiency (63%) at -200 A m(-2). Additionally, the membranes significantly affected sulphate consumption as they are anions.
Article
Polymer Science
Romina Abdarnezhadi, Ali Mehrizad
Summary: This study focuses on using an efficient photocatalytic process to convert Cr6+ into its less toxic oxidation state Cr3+. Samarium-doped ZnIn2S4 was synthesized and its flowerlike structure was validated. The photocatalytic performance of Sm-ZnIn2S4 under visible light was systematically studied, achieving a Cr6+ reduction of 97.18%. The results suggest that Sm-ZnIn2S4 can be employed as an efficient visible-light photocatalyst for wastewater treatment.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2023)
Article
Green & Sustainable Science & Technology
Manjakuppam Malika, Shriram S. Sonawane
Summary: A novel aqueous based copper-nickel doped titania supported montmorillonite clay hybrid nanofluid was prepared using a hydrothermal process in this study. The photocatalyst activity was analyzed by degrading Rhodamine B under visible light, showing a 19% reduction in the TiO2 band gap energy at a metal ratio of 75:25. The addition of clay improved the adsorption surface area and porosity of the photocatalyst. By adjusting input parameters using response surface methodology, a 97% photocatalytic degradation of effluent within 60 minutes was achieved. An analysis of variance study was also conducted to understand the significant effects of input parameters on the response variable, proposing a new quadratic correlation and possible photocatalytic degradation mechanism.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2021)
Article
Materials Science, Ceramics
Jihen Soli, Sana Kachbouri, Elimame Elaloui, Clarence Charnay
Summary: In this study, ZnO nanoparticles were synthesized using a modified sol-gel method with optimization of synthesis parameters through response surface methodology. Various characterization techniques were used to analyze the properties of the nanoparticles, revealing the influence of different surfactants on their photocatalytic activity. The results showed that ZnO nanoparticles exhibited higher photocatalytic activity for Rhodamine B degradation under UV irradiation and sunlight, with Z2F prepared with pluronic F127 showing excellent performance.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2021)
Review
Engineering, Environmental
Chao Liang, Xue-Min Wang, Wei Liu, Hui-Yun Liu, Da-Wei Huang, Yuan-Zheng Zhang, Kai-Hang Zhang, Li-Sha Jiang, Yu-Yu Jia, Cheng-Gang Niu
Summary: Hydrogen peroxide (H2O2) is a crucial compound used in various applications such as industrial processes, medical disinfection, and water treatment. Graphitic carbon nitride (g-C3N4) shows promise as an alternative for photocatalytic H2O2 production due to its high redox ability, long-term stability, and adjustable electronic properties. However, the current limitations in g-C3N4-based systems include sluggish kinetics, rapid charge carrier recombination, and low H2O2 production selectivity. To overcome these challenges, functionalized g-C3N4 materials with a large surface area, fast charge carrier separation, and improved O2 adsorption and activation are expected to enhance reaction kinetics and selectivity.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Arezu Ataei, Ali Mehrizad, Karim Zare
Summary: The CdS/CaFe2O4 supported onto clinoptilolite zeolite was successfully prepared and characterized. Response surface methodology and artificial neural network were employed to assess the photoactivity of the ternary nanocomposite, with results showing over 86% degradation of cefazolin under optimized conditions.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Engineering, Chemical
Hanane Chaker, Alaa Eddine Attar, Mustapha Djennas, Sophie Fourmentin
Summary: This study focuses on optimizing the photodegradation of methyl orange (MO) using a central composite design (CCD) coupled with Response Surface Methodology (RSM). The results show that cerium nanoparticles (CeNPs) enhance the photocatalytic performance of ZnO at 2% Ce content. The optimum conditions were found to be pH of solution at 5.58, MO concentration at 20.72 mg L-1, and catalyst dosage at 0.63 g L-1.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2021)
Article
Chemistry, Physical
Weiqi Guo, Haolin Luo, Zhi Jiang, Dongxu Fang, Jiasheng Chi, Wenfeng Shangguan, Zhiliang Wang, Lianzhou Wang, Adam F. Lee
Summary: Cobalt oxide nanoparticles with germanium dopants show enhanced performance in electrochemical oxygen evolution and photocatalytic overall water splitting reactions. The doping induces a restructuring of the cobalt oxide structure, leading to the formation of highly active oxyhydroxide phases. Additionally, the combination of p-type Co3Ge2(OH)5 semiconductor with n-type Bi0.5Y0.5VO4 semiconductor leads to a doubled photocatalytic activity in overall water splitting reactions.
Article
Materials Science, Multidisciplinary
Arantxa Danielle S. Montallana, Magdaleno R. Vasquez
Summary: Visible-light-active nanomaterials were fabricated for the photodegradation of organic compound in water using facile techniques. The immobilized Ag-TiO2 NPs in PVA showed high efficiency in removing methylene blue and decreasing TOC concentration in fishpond wastewater under visible-light irradiation, indicating potential applications in wastewater treatment. The catalysts demonstrated effectiveness in counteracting biochemical reactions in actual wastewater samples.
RESULTS IN PHYSICS
(2021)
Article
Environmental Sciences
A. Sofia Vizhimalar, M. Vasanthy, C. Thamaraiselvi, Muniyandi Biruntha, J. Arockia John Paul, Anand Thirupathi, Soon Woong Chang, Zhi Xu, Sarah Al -Rashed, Ganesh Munuswamy-Ramanujam, Balasubramani Ravindran
Summary: This study investigated the aerobic composting of agro-waste using cow dung and mule dung, resulting in stable and mature composts that improved plant nutrition and soil fertility. The combination of agricultural crop waste with animal manure, especially mule dung, promoted excellent biodegradation of organic complexes and provided a nature-friendly solution for managing solid waste such as agro-wastes.
Article
Environmental Sciences
Kumar Pandion, S. B. Mohamed Khalith, Balasubramani Ravindran, Murugesan Chandrasekaran, Rajakrishnan Rajagopal, Ahmed Alfarhan, Soon Woong Chang, Ramamoorthy Ayyamperumal, Amitava Mukherjee, Kantha Deivi Arunachalam
Summary: This study investigated the seasonal fluctuations in fish diversity and heavy metal concentrations in coastal areas, and assessed the human health risks associated with the heavy metals. The results showed significant variations in metal concentrations in fish, water, and sediment across different locations. The health hazard assessment indicated that the exposure doses of most elements were safe for both children and adults, except for Hg and Cd in children.
ENVIRONMENTAL POLLUTION
(2022)
Article
Energy & Fuels
Debnath Ovi, Soon Woong Chang, Jonathan W. C. Wong, Davidraj Johnravindar, Sunita Varjani, jae Hoon Jeung, Woo jin Chung, Anand Thirupathi, Balasubramani Ravindran
Summary: This study found that the addition of an appropriate amount of rice husk biochar (RHB550) can improve the anaerobic digestion process of food waste and increase methane production. However, excessive amounts of biochar can inhibit the digestion process. Adding RHB550 biochar can enhance the stability and methane yield. Increasing its concentration can further improve the organic loading rate in anaerobic digestion.
Article
Environmental Sciences
Thu Thuy Nguyen, Huu Hao Ngo, Wenshan Guo, Soon Woong Chang, Dinh Duc Nguyen, Chi Trung Nguyen, Jian Zhang, Shuang Liang, Xuan Thanh Bui, Ngoc Bich Hoang
Summary: This research presents a new approach using advanced machine learning models and multi-sensor data fusion to accurately predict soil moisture at a high spatial resolution in research areas of Australia. The XGBR-GA model, incorporating features derived from Sentinel and ALOS imagery, demonstrated the highest performance in soil moisture prediction compared to other machine learning models. This approach has significant implications for precision agriculture and drought resilience programs.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Kannayiram Muthukumaravel, Marckasagayam Priyadharshini, Venkatachalam Kanagavalli, Natarajan Vasanthi, Munawar Suhail Ahmed, Mohamed Saiyad Musthafa, Saurabh Shukla, Ramsha Khan, Rajinikanth Rajagopal, Soon Woong Chang, Balasubramani Ravindran
Summary: Phenol, a common aromatic chemical found in domestic and industrial effluents, adversely affects the indigenous biota and has long-lasting toxic effects on the aquatic ecosystem. This study observed the response of Labeo rohita to sublethal concentrations of phenol, resulting in a decrease in biochemical constituents and hematological parameters in the fish.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2023)
Article
Environmental Sciences
B. Sowmiya Rajalakshmi, A. Annes Silva Fathima, B. Sunitha Jasmine, M. Vasanthy, C. Thamarai Selvi, Rajinikanth Rajagopal, Ramsha Khan, Ashraf Atef Hatamleh, Bassam Khalid Alnafisi, Mansour K. Gatasheh, Soon Woong Chang, Balasubramani Ravindran
Summary: The goal of this study was to develop an efficient method for treating cheese production wastewater. The indigenous microbial treatment process was used to effectively remove total dissolved solids, chemical oxygen demand, and color without adding any nutrients. Among the different microbes tested, Enterobacter cloacae showed the highest removal efficiency for TDS and COD. The study suggests that microbial therapies are effective and environmentally beneficial.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2023)
Article
Environmental Sciences
Tran Hung Nguyen, Huu Thanh Le, Tri Thien Vu, Minh Tri Le, Xuan Hoan Nguyen, Duong Duc La, S. Woong Chang, D. Duc Nguyen, Tuong Manh Nguyen
Summary: The purpose of this study was to synthesize selenium nanoparticles (Se NPs) using the solution plasma process (SPP), which is a novel green synthesis method. The Se NPs were successfully synthesized in an ethanol-water solution at room temperature and were characterized using various techniques. The results showed that the synthesized Se NPs had uniform flower-like structures and exhibited notable antimicrobial properties against bacteria and yeast.
WASTE AND BIOMASS VALORIZATION
(2023)
Article
Biotechnology & Applied Microbiology
Jyoti Kaushal, Arun Raina, Gursharan Singh, Madhu Khatri, Shailendra Kumar Arya, Natchimuthu Karmegam, Balasubramani Ravindran, Soon Woong Chang, Ravi Mani, Mukesh Kumar Awasthi
Summary: This research evaluated a straightforward approach for pulp bio-bleaching by directly growing a xylanase-producing microorganism on the soda pulp. The results showed that the bacterial treated pulp samples had a higher decrease in kappa number and more significant improvement in paper physical properties compared to the enzymatic treatment. The findings suggest that the direct growth of Bacillus pumilus is a simpler and more efficient method for pulp bleaching.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2022)
Article
Agricultural Engineering
Pritam Kaur, Madhu Khatri, Gursharan Singh, Manickam Selvaraj, Mohammed A. Assiri, Samuel Lalthazuala Rokhum, Shailendra Kumar Arya, Sumathi Jones, Babett Greff, Soon Woong Chang, Balasubramani Ravindran, Mukesh Kumar Awasthi
Summary: This study used two pretreatment methods, hydrogen peroxide-acetic acid (HP-AC) and sodium hypochlorite-sodium hydroxide (SH-SH), to produce xylo-oligosaccharides (XOS) from agriculture waste such as green coconut and vegetable cocktail. The optimal conditions for pretreatment were 80 degrees C, 4.0% NaClO, and 2 h, followed by 0.08% NaOH, 55 degrees C, and 1 h. Enzymatic hydrolysis of green coconut resulted in the best outcomes. Different types of XOS were obtained from the treated biomass, with a high quantity of xylo-pentose (96.44% and 93.09% from GC and VC, respectively) and other XOS <2%. This study provides a secure and economical method for converting secondary crop residue into XOS and fermentable sugars.
BIORESOURCE TECHNOLOGY
(2023)
Article
Engineering, Environmental
Mayur B. Kurade, Ghulam Mustafa, Muhammad Tariq Zahid, Mukesh Kumar Awasthi, Mital Chakankar, Katrin Pollmann, Moonis Ali Khan, Young Kwon Park, Soon Woong Chang, Woojin Chung, Byong-Hun Jeon
Summary: This study demonstrates a novel approach of integrated phycoremediation and ultrasonication-irradiation treatment (iPUT) used for improving the degradation of sulfonamide antibiotics via a cumulative effect of combined treatments. Ultrasonication treatment had different effects on microalgae growth depending on whether it was a single treatment (SUT) or multiple-intermittent treatments (IUT). The removal of sulfonamide antibiotics was significantly improved by both SUT and IUT, with IUT showing a higher removal rate.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Nikita Yadav, Hyun-Jo Ahn, Niraj R. Rane, Mayur B. Kurade, Xiaofang Li, Young-Kwon Park, Moonis Ali Khan, Woo Jin Chung, Soon Woong Chang, Byong-Hun Jeon
Summary: This study assessed the potential of three aquatic macrophytes (Iris pseudacorus, Ipomoea aquatica, and Typha angustifolia) to remove BPS from secondary wastewater effluent. The results showed that these plants could remove BPS at a concentration of 0.005 mg/L with removal rates of 100%, 97%, and 97.5% for I. pseudacorus, I. aquatica, and T. angustifolia, respectively. Twelve biotransformed products of BPS were identified, and a lab-scale vertical phytoreactor was constructed to completely remove BPS along with nutrients and inorganic contaminants from the wastewater.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Energy & Fuels
Thi Ngoc Bao Dung, Chyi-How Lay, D. Duc Nguyen, S. Woong Chang, J. Rajesh Banu, Youngsun Hong, Jeong-Hoon Park
Summary: Macroalgae is a promising resource for biofuel production. Effective pretreatment using a disperser and acid can significantly increase biohydrogen production.
Review
Agricultural Engineering
Sivasubramanian Manikandan, Sundaram Vickram, Ranjna Sirohi, Ramasamy Subbaiya, Radhakrishnan Yedhu Krishnan, Natchimuthu Karmegam, C. Sumathijones, Rajinikanth Rajagopal, Soon Woong Chang, Balasubramani Ravindran, Mukesh Kumar Awasthi
Summary: In recent years, biofuel or biogas has emerged as the main source of bio-energy, providing an alternative to conventional energy and reducing greenhouse gas emissions. Efficient enzymes are being researched for enzyme hydrolysis in bioethanol production to improve cost-effectiveness. Microbial catabolic reactions can be exploited for electric energy production in microbial fuel cells using complex renewable biomasses and organic wastes. Various enzyme strategies are used in hydrolysis methods to enhance bioethanol production from lignocellulosic biomasses. This paper investigates enzyme hydrolysis pathways, microbial fermentation, microbial fuel cells, and anaerobic digestion in the manufacturing of bioethanol/bioenergy from lignocellulose biomass.
BIORESOURCE TECHNOLOGY
(2023)
Article
Environmental Sciences
Kritika Thakur, Tanya Kuthiala, Gursharan Singh, Shailendra Kumar Arya, Chuleemas Boonthai Iwai, Balasubramani Ravindran, Kuan Shiong Khoo, Soon Woong Chang, Mukesh Kumar Awasthi
Summary: Aquaponics combines aquaculture and hydroponics, offering a sustainable and environmentally friendly system for food production in urban areas. The system completely reuses its waste as plant fertilizer, resulting in water savings and efficient farming.
Article
Energy & Fuels
Ali Dawood Salman, Tatjana Juzsakova, Phuoc-Cuong Le, Moayyed G. Jalhoom, Thamer A. Abdullah, Endre Domokos, Hoang-Son Le, S. Woong Chang, S. Chul Kim, D. Duc Nguyen
Summary: This study aimed to prepare and characterize nano-silica from agricultural waste (palm ash) using a leaching treatment process. The extracted silica from palm ash showed a purity above 92% and an average particle size of 80 nm. The prepared palm ash nano-silica (PANS) can be used as admixtures to enhance the mechanical properties of cement mortar, with significant improvements in compressive and tensile strengths.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
