Article
Environmental Sciences
Lalitha Gnanasekaran, Rekha Pachaiappan, P. Senthil Kumar, Tuan K. A. Hoang, Saravanan Rajendran, D. Durgalakshmi, Matias Soto-Moscoso, Lorena Cornejo-Ponce, F. Gracia
Summary: This study focuses on improving the treatment of industrial waste and harmful bacteria by tuning the band gap of the TiO2 catalyst, and discusses the mechanism and results of photocatalytic and antibacterial activities in detail.
ENVIRONMENTAL POLLUTION
(2021)
Article
Materials Science, Multidisciplinary
Yanhui Ge, Hao Luo, Juanru Huang, Zhiming Zhang
Summary: The study presents a simple strategy for synthesizing visible-light-active TiO2 photocatalysts with high efficiency in degrading organic dyes, capable of efficiently removing Rh B and MB within a short period of time.
Article
Nanoscience & Nanotechnology
Sheng-Hua Ma, Wei-Liang Jin, Wei Li, Hai-Yuan Wang, Li-Na Zhu, Ming Zeng, De-Ming Kong
Summary: This research demonstrates that covalent organic frameworks (COFs) can be used as promising candidates to prepare high-performance Bi/COF plasmonic photocatalysts. The prepared Bi/COF nanoheterojunctions not only show increased visible light harvesting, accelerated electron transfer, and retarded charge recombination but also maintain strong substrate adsorption capability of COFs. Moreover, the proposed Bi/COF photocatalyst works well in the visible-light photocatalytic degradation of organic pollutants.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Inorganic & Nuclear
A. Jafarabadi, M. Sobhani, H. Koohestani
Summary: In this study, TiO2/Fe2TiO5 ceramic was synthesized by reacting iron (III) hydroxide with dispersed suspension of TiO2 particles. Suspensions at different pH values were prepared, and subsequent calcination resulted in the formation of Fe2TiO5 on the surface of TiO2 particles. XRD analysis confirmed the presence of pseudobrookite Fe2TiO5, while TEM images showed the coexistence of Fe2TiO5 and TiO2 with rutile structure. UV-Vis diffuse reflectance spectra revealed two direct band gap energies associated with the Fe2TiO5 coating and TiO2 support.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Environmental Sciences
Ali Dehdar, Ghorban Asgari, Mostafa Leili, Tayyebeh Madrakian, Abdolmotaleb Seid-mohammadi
Summary: In this study, photodegradation of 4-chlorophenol using a BiVO4/WO3 heterostructure under visible LED light irradiation was investigated. Results showed that it had higher efficiency in 4-CP degradation than other systems, and identified major intermediates of degradation were phenol and chlorobenzene.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Engineering, Environmental
Saravanan Rajendran, Rekha Pachaiappan, Tuan K. A. Hoang, Sekar Karthikeyan, Lalitha Gnanasekaran, S. Vadivel, Matias Soto-Moscoso, M. A. Gracia-Pinilla
Summary: Recent interest and responsibility in protecting water resources have led scientists to develop mechanisms using sustainable resources like sunlight to remove pollutants from water. Utilizing unique materials and studying semiconductor structures are key in achieving photocatalytic degradation of water pollutants under visible light excitation.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Anna Gibas, Agnieszka Baszczuk, Marek Jasiorski, Marcin Winnicki, Daniel Ocinski
Summary: This study presents a facile approach to deposit coatings using low-pressure cold spray technique from amorphous titanium dioxide. By introducing defects and active groups, the activity of the coatings can be preserved, leading to effective photocatalytic degradation under visible light.
Article
Chemistry, Physical
Ju-Seong Choi, Sungjin Kim, Yongheum Choi, Kwang Bok Kim, Hyun-Jong Kim, Tae Joo Park, Young Min Park
Summary: Ag-decorated CuO@TiO2 semiconductor heterojunctions were successfully prepared and exhibited excellent performance in visible light photocatalysis applications. The high decomposition efficiency was achieved through the combined effects of the conformal core-shell heterojunction formed by atomic layer deposition and the well-distributed Ag nanoparticles.
SURFACES AND INTERFACES
(2022)
Article
Engineering, Chemical
Xiao Miao, Ling Zhao, Guina Ren, Changqing Zhu
Summary: This study investigates a slurry containing Ag3PO4, Fe3O4, and polydimethylsiloxane for the effective treatment and recovery of various organic pollutants. The material shows excellent bonding stability and pollutant removal performance on different substrates. Additionally, graphene oxide exhibits the best photodegradation behavior when added at a specific concentration.
ADVANCED POWDER TECHNOLOGY
(2021)
Article
Chemistry, Physical
Liang Jiang, Jiao He, Yepeng Yang, Decheng Mao, Daomei Chen, Wei Wang, Yongjuan Chen, Virender K. Sharma, Jiaqiang Wang
Summary: This study presents a solvothermal method to design the microstructural building units of hard-biotemplated TiO2, achieving significantly enhanced visible-light photocatalytic efficiency. The biotemplated TiO2 with concave porous microstructure exhibited much higher photocatalytic efficiency compared to pure TiO2 and other biotemplated TiO2 samples prepared by conventional sol-gel method and solvothermal method without glycerol or HF added.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Environmental Sciences
Solmaz Feizpoor, Aziz Habibi-Yangjeh, Rafael Luque
Summary: Pharmaceutical residual contaminants in aquatic ecosystems pose severe risks to human health. This research presents the development of a visible light photocatalyst, TiO2/Ag3BiO3 heterojunction, for efficient removal of tetracycline hydrochloride. The enhanced removal efficiency is attributed to improved light absorption capacity and suppressed recombination of photogenerated charge carriers through the formation of n-n heterojunctions. The study also elucidates the mechanism behind the improved degradation efficiency.
ENVIRONMENTAL RESEARCH
(2022)
Article
Chemistry, Inorganic & Nuclear
Ghader Hosseinzadeh, Naser Ghasemian, Sahar Zinatloo-Ajabshir
Summary: The TiO2/graphene nanocomposite supported on clinoptilolite nanoplate prepared by hydrothermal method showed significantly higher photocatalytic degradation efficiency for nitenpyram insecticide under visible light, mainly due to the advantages of clinoptilolite and graphene, such as microporous structure and enhancement of effective surface area. The hydroxyl radicals were identified as the main active species responsible for the photocatalytic degradation of nitenpyram. This study provides a new insight for fabricating more effective zeolite and graphene-based nanocomposite photocatalysts for environmental remediation.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Ruiqi Gang, Yi Xia, Lei Xu, Libo Zhang, Shaohua Ju, Zemin Wang, Sivasankar Koppala
Summary: Ag-decorated TiO2 plasmonic photocatalysts were successfully fabricated using a facile method. The TiO2/Ag samples exhibited higher photodegradation efficiency and superior stability, which was attributed to the surface plasmon resonance effect and enhanced visible light absorption of Ag nanoparticles. A possible mechanism for the degradation of tetracycline by TiO2/Ag nanocomposites was proposed.
SURFACES AND INTERFACES
(2022)
Article
Materials Science, Multidisciplinary
O. Mertah, K. El Hajjaji, S. El Amrani, K. Tanji, I. Goncharova, A. Kherbeche
Summary: The heterostructures of Cu/TiO2@Ag3PO4, formed by placing Cu/TiO2 nanoparticles on Ag3PO4, can significantly enhance the photocatalytic activity for nitrate reduction under simulated visible light irradiation and exhibit good antibacterial activities against E. coli and S. aureus.
Article
Electrochemistry
Hengbo Liu
Summary: In this study, a nanostructured photocatalyst based on Fe and N co-doped TiO2 was synthesized and successfully used for the degradation of o-CP in water. The doping process was found to decrease charge transfer resistance and increase carrier transfer rate, resulting in a narrowing of the optical band gap and red-shift of absorption wavelength. Fe-2+N-10/TiO2 exhibited the best photocatalytic performance among the prepared samples, achieving complete removal of o-CP under simulated sunlight irradiation.
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2022)
Article
Environmental Sciences
Mark Daniel G. de Luna, Sergi Garcia-Segura, Chinee H. Mercado, Yao-Tung Lin, Ming-Chun Lu
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2020)
Article
Environmental Sciences
M. D. G. de Luna, L. H. S. Paulino, C. M. Futalan, M. C. Lu
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2020)
Article
Agricultural Engineering
Justin Chun-Te Lin, Yi-Sung Liu, Wei-Kuang Wang
BIORESOURCE TECHNOLOGY
(2020)
Review
Environmental Sciences
Carl Francis Z. Lacson, Ming-Chun Lu, Yao-Hui Huang
Article
Environmental Sciences
Mark Daniel G. de Luna, Anamie Rabongue, Sergi Garcia-Segura, Ming-Chun Lu
Summary: Cartap, a widely-used thiocarbamate pesticide for protecting rice crops, poses significant environmental and health risks in effluents due to its acute toxicity. The fluidized-bed Fenton process showed efficient removal of Cartap with improved reduction in chemical oxygen demand and total organic carbon. However, the presence of phosphate ions in natural water matrices can have a detrimental effect on Fenton oxidation, inhibiting the production of oxidants for contaminant degradation.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Biotechnology & Applied Microbiology
Wei-Kuang Wang, Chen-Hua Ni, Yue-Jie Guo, Yu-Chung Lin, Justin Chun-Te Lin
INTERNATIONAL BIODETERIORATION & BIODEGRADATION
(2020)
Review
Environmental Sciences
Khyle Glainmer N. Quiton, Ming-Chun Lu, Yao-Hui Huang
Summary: This study investigates the application of bimetallic catalysts in water and wastewater treatment, finding that Fe-based bimetallic catalysts are one of the most efficient heterogeneous catalysts for the treatment of organic and inorganic contamination. The roles and performances of bimetallic catalysts in the removal of environmental contaminants vary.
Article
Green & Sustainable Science & Technology
Carl Francis Z. Lacson, Ming-Chun Lu, Yao-Hui Huang
Summary: This study discusses the toxicity of fluoride in the environment, related defluoridation technologies, operational costs and effectiveness. It is noted that adsorption is currently the main technique for defluoridation, but requires further development. Additionally, industrial effluents may have high fluoride concentrations, traditional treatment methods are ineffective and hybrid treatments are needed.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Environmental Sciences
Reyson M. Feliciano, Benny Marie B. Ensano, Mark Daniel G. de Luna, Cybelle M. Futalan, Ralf Ruffel M. Abarca, Ming-Chun Lu
Summary: Desulfurization of liquid fuels is essential to reduce the emission of sulfur oxides and particulates during fuel combustion. In this study, the desorption mechanism of sulfur from neutral activated alumina saturated with dibenzothiophene sulfone was investigated, with batch experiments showing that acetone had superior desorption efficiency compared to other eluents. The desorption kinetics followed a pseudo-second-order equation with chemisorption as the rate-determining step, and thermodynamics study revealed the spontaneous and endothermic nature of sulfur desorption using acetone as eluent. Overall, neutral activated alumina was proven to be an efficient and reusable adsorbent for sulfur compound removal from liquid fossil fuels.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Engineering, Environmental
Carl Francis Zulueta Lacson, Ming-Chun Lu, Yao-Hui Huang
Summary: Excessive industrial advances have led to an increase in fluoride effluents, beyond the capacity of the environment, requiring the use of technologies such as chemical precipitation to reduce pollution.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Environmental Sciences
Nonglak Boonrattanakij, Sirikorn Yomchinda, Fang-Jia Lin, Luzvisminda M. Bellotindos, Ming-Chun Lu
Summary: This study examined the improvement of air quality in a fitness center's exercise room under normal operating conditions, focusing on bacterial and fungal contamination. Chlorine dioxide and weak acid hypochlorous water aerosols were found to be more effective in removing bacteria and fungi than water scrubbing, with a 15-minute contact time sufficient to meet air quality standards. User density and carbon dioxide levels had a significant impact on the disinfection performance of bacteria and fungi, while temperature specifically affected fungi disinfection.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Nathaniel E. Quimada, Mark Daniel G. De Luna, Anabella C. Vilando, Ming-Chun Lu
Summary: This study investigates the removal and recovery of copper and nickel ions from synthetic PCB wastewater using a fluidized-bed homogeneous granulation process (FBHGP). The research found that high removal and granulation efficiency can be achieved under different operating conditions.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Review
Green & Sustainable Science & Technology
Jui-Yen Lin, Erica A. Garcia, Florencio C. Ballesteros, Sergi Garcia-Segura, Ming-Chun Lu
Summary: Carbon capture, utilization, and storage (CCUS) technologies are being developed to mitigate CO2 emissions and address global warming and climate change. Chemical precipitation plays a crucial role in enhancing the performance, energy-efficiency, and profitability of CCUS. Controlled precipitation helps reduce energy demand, stabilize CO2 as solid carbonates, and manipulate the morphology of calcium carbonate for better utilization and environmental benefits.
SUSTAINABLE ENVIRONMENT RESEARCH
(2022)
Article
Green & Sustainable Science & Technology
Corazon Alaba Virtudazo-Ligaray, Mark Daniel G. de Luna, Angelo Earvin Sy Choi, Ming Chun Lu
Summary: Desulfurization technology is important for removing sulfur from fuel, and the CeO2-WOx-TiO2 catalyst synthesized in this study showed promising results in oxidative desulfurization of fuel oil at lower temperature and pressure.
CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY
(2023)
Article
Biology
Ming-Chun Lu, Po-Lin Chen, Da-Ji Huang, Chih-Kuo Liang, Ching-Shan Hsu, Wei-Ting Liu
Summary: The study in a hospital infectious disease ward in Taiwan found that chlorine dioxide had a stronger disinfection effect compared to weak acid hypochlorous water. Using chlorine dioxide twice daily was the most effective means of satisfying the Taiwan EPA guidelines for indoor air quality in hospital wards.
Article
Engineering, Chemical
Yunfei Yu, Xue Yang, Chenchen Zhang, Jie Chen, Wei Lin, Jianqiang Meng
Summary: This study reports an environmentally friendly and simple approach for preparing double-network (DN) ion gel membranes with high strength and excellent gas separation performance. By optimizing crosslinking density, mass ratio, and the type and content of free ionic liquid, the mechanical and gas separation properties of the DN membrane are improved.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Si-qi Jiang, Qiang Gao, Xi-guang Li, Chao-zhu Deng, Jun Qiu, Xiang-nan Zhu
Summary: A dual-strengthening pretreatment method is proposed to remove PVDF more efficiently and enhance the leaching of LiCoO2. Experimental results show that dual-strengthening pretreatment can effectively remove PVDF and significantly improve the leaching efficiency compared to single pretreatment methods.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Zengchi Hu, Xiaoyu Wang, Xiaohui Zhang, Xue Li, Jiangbin Xia
Summary: The rapid fabrication of high-performance composite membranes based on CMPs using simple and low-cost methods is challenging. In this study, three CMPs-based composite membranes were rapidly fabricated with adjustable size using unidirectional diffusion synthesis. The microstructural design enhanced the rejection rates of the membranes and they showed strong hydrolytic resistance, thermal stability, and acid-base resistance. Electrostatic adsorption and the adjustable microstructures significantly varied the repellence of the membranes to different charged molecules.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Farzaneh Rouhani, Matineh Ayedi, Nasser Safari
Summary: Introducing defects into porous metal-organic frameworks is important for improving their adsorption performance. Quasi-MOFs, an underutilized variant of large-scale, fundamentally deficient MOFs, have been found to have substantial amounts of unsaturated metal sites to offset the drawbacks of MOFs. In this study, a quasi-MOF was produced using a water-stable MOF and demonstrated significantly improved phosphate adsorption capability due to the presence of defect sites.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Valentin Reungoat, Morad Chadni, Louis M. M. Mouterde, Fanny Brunissen, Florent Allais, Helene Ducatel, Irina Ioannou
Summary: This study focuses on the recovery of sinapic acid using liquid-liquid extraction assisted by a hollow fiber membrane contactor from an aqueous feed obtained through the hydrolysis of mustard bran. The screening of solvents of different chemical nature showed that all tested solvents had an extraction efficiency of more than 80% for pH < 5. Four solvents were selected for use in the hollow fiber membrane contactor, and the volatile solvents showed higher mass transfer coefficients compared to non-volatile solvents. The extraction efficiency was intensified by increasing the initial concentration of sinapic acid and the feed-to-solvent ratio. CPME was found to have optimal recovery efficiency at a phase ratio of 8:1, yielding 0.9 g of sinapic acid per liter of CPME used.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Takahiro Sakamoto, Takafumi Hanada, Hayate Sato, Mayu Kamisono, Masahiro Goto
Summary: The emergence of the battery society has led to a high demand for battery metals, resulting in a strain on their supply. This study introduces a novel technique using a hydrophobic deep eutectic solvent (DES) for leaching and recovering battery metals from low-grade nickel laterite ores. The DES enables selective leaching and recovery of the metals, offering a promising pathway for the extraction of critical battery metals.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Rongrong He, Jiarui Chen, Chunyao Zhang, Dan Lu, Lin Zhang, Tao He
Summary: Researcher has developed a method to quantify the charge density in nanofiltration (NF) membrane separation layer and applied it in NF membranes that can separate Mg2+ and Li+. The results showed that overcompensated amine groups played a major role, and there was a linear relationship between charge density and coating bi-layers or PAH layers.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Zhijian Zhang, Min Chen, Zhe Lin, Zhichao Yang, Yafeng Du, Zhihui Chen, Zhenhao Yang, Kongyin Zhao, Ligang Lin
Summary: Membrane technology plays an important role in molecular/ion separation processes, but faces challenges such as membrane fouling. This study introduces a new ion-crosslinking method to fabricate copper alginate hydrogel membranes with improved mechanical strength and antimicrobial capabilities. The membranes exhibit excellent separation performance and enhanced long-term molecule/ion separation through improved anti-swelling properties. Molecular dynamics simulations and life cycle analysis highlight the pore structure and environmental friendliness of the hydrogel membranes. These findings provide valuable insights for developing sustainable hydrogel membranes with stable performance and high separation efficiency.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Dongmei Liu, Aiying Guo, Yanling Qi, Zhixin Ji, Hongjuan Li, Zhiwei Zhang, Xinyue Zhang, Kunze Wu, Aijun Cai
Summary: In this study, a stable magnetic Mg/Mn-layered double oxide-doped biochar composite (MgMnLDO-MBC) was prepared and successfully used for the removal of antibiotics and bacteria from wastewater. The composite exhibited enhanced surface areas, adsorption sites, and free radicals, leading to improved catalytic activity. The effects of different factors on the removal efficiency were evaluated, and the composite showed good reusability.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Feng Wang, Zhaoyong Bian, Yaru Zhang, Wenchao Yu, Qiang Zhang, Hui Wang
Summary: In this study, a nanofibrous layered structure of Ff-Ti3C2Tx-Co3O4 was prepared by self-assembling nanofibrous Co3O4 with lamellar fluorine-free MXene (Ff-Ti3C2Tx). The Ff-Ti3C2Tx-Co3O4 exhibited excellent catalytic activity for degradation, resistant to ionic interference, and maintained high removal efficiency of sulfamethoxazole (SMX) in municipal wastewater. The rapid SMX degradation involved fast electron transfer in redox cycles with PMS and the generation of 1O2 via PMS ->center dot O2 -> 1O2. This work provides new insights into antibiotic degradation mechanisms and electron transfer based on PMS activation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Weipeng He, Jiacheng Luo, Yujie Wu, Tianhao Luo, Chen Tang
Summary: This study comparatively evaluated the role of cationic, anionic, and nonionic polyacrylamides (PAMs) in ballasted flocculation of clay suspensions under different aluminum sulfate (AS) coagulant dosages. The selection of PAMs and AS dosage had a significant influence on the size and shear resistance of ballasted floc aggregates.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Lixian Wang, Lizhi Zhao, Didi Si, Zhixin Li, Huiqin An, Hui Ye, Qingping Xin, Hong Li, Yuzhong Zhang
Summary: Metalloporphyrin-based nanozymes integrated with poly (vinylidene fluoride) membrane show high catalytic activity and reusability for the decolorization of Congo Red dye in continuous flow process.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Yongfei Ma, Chenyu Zeng, Yongzhen Ding, Jiayi Tang, Ondrej Masek, Zhikang Deng, Rui Mu, Zulin Zhang
Summary: In this study, sludge-derived biochar (SBC) was functionalized with various iron salts to enhance its adsorption ability for sulfamethoxazole (SMX) and magnetic collection performance. Ball milling was further employed to treat the optimal iron salt functionalized SBC (MSBC), resulting in ball milled SBC (BMSBC) with improved adsorption performance for SMX. The dominant driving mechanism for SMX adsorption onto BMSBC was confirmed to be multiple physicochemical forces, including 7C-7C conjugation, pore filling, H-bonding, Fe-O complexation, and electrostatic interactions. BMSBC exhibited favorable adsorption ability for SMX in actual waters and could be easily collected within 1 min due to its magnetic sensitivity.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Jinglin Tan, Xiaohui Mao, Wenjihao Hu, Hongbo Zeng
Summary: This study investigates the influence of PDMS chain architectures on surface properties and reveals that PDMS coatings with looped structures exhibit superior hydrophobicity, self-cleaning, and water sliding compared to coatings with linear structures. Additionally, both looped and linear PDMS coated stainless steel mesh/polyester fibers show efficient separation of oil/water mixture.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Wei-Liang Chen, Chih-Chia Cheng, Chien-Hsing Lu, Jem-Kun Chen
Summary: This study designs a novel sandwich-structured capacitor that reduces the absorption time of pollutants using dielectrophoresis force. By coating graphene oxide on polystyrene microspheres as adsorbents and encapsulating them within the capacitor, the adsorption rate is significantly enhanced. Additionally, frequency manipulation allows for the recycling of adsorbents and concentration of dyes, minimizing secondary pollution.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)