Article
Engineering, Environmental
Mingzhen Zhang, Guijian Liu, Ruijia Liu, Jinzhao Xu, Wen Si, Yong Wei
Summary: Tieguanyin tea stem was used to synthesize modified biochar for the adsorption of copper and zinc. Among the modified biochar, Fe-BCs had the highest adsorption capacity, with Fe-BC650 being the best adsorbent. It reached adsorption equilibrium in 1 minute and had a maximum adsorption capacity of 303.5996 mg/g for Cu (II) and 254.0711 mg/g for Zn (II) in single-metal solutions. However, there were antagonistic impacts between Cu2+ and Zn2+.
JOURNAL OF WATER PROCESS ENGINEERING
(2024)
Article
Chemistry, Physical
Zohre Karami, Amin Hamed Mashhadzadeh, Ahmad Shahmoradi, Mohammad Reza Ganjali, Vahid Vatanpour, Amin Esmaeili, Sajjad Habibzadeh, Gaurav Sharma, Florian J. Stadler, Mohammad Reza Saeb
Summary: A computational study using density functional theory was conducted to investigate the adsorption of lead on two surface decorated alumina nanostructures, demonstrating the superior lead removal capability of decorated gamma-alumina surfaces. Adsorption energy calculations showed enhanced binding energy for Ni- and Pt-decorated nano gamma-alumina, indicating a potential chemisorption process for lead removal.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Multidisciplinary
Ana Rita Oliveira, Antonio Alberto Correia, Maria Graca Rasteiro
Summary: Carbon nanotubes (CNTs) are extensively studied nanoparticles due to their unique properties, but the challenge of CNT aggregation affects their applications. Modifying the surface energy of CNTs through chemical and mechanical stabilization can effectively stabilize CNTs and enhance their performance in heavy metal removal.
Article
Agricultural Engineering
Peizhen Zhang, Xiaoxiao Zhang, Xiangru Yuan, Ruyue Xie, Lujia Han
Summary: The study found that CMBCs mainly adsorb Cu(II) through chemical adsorption, including mineral co-precipitation and cations exchange, with a significant positive correlation with ash content and cations exchange capacity. Furthermore, there are quantitative relationships between adsorption behaviors at different pyrolysis temperatures.
BIORESOURCE TECHNOLOGY
(2021)
Article
Engineering, Environmental
Qian Ge, Hongzhi Liu
Summary: By changing the acid scavenger, two novel kinds of amine-functionalized silsesquioxane-based hybrid networks were successfully prepared, exhibiting high adsorption capacities for heavy metal ions and dyes, as well as good thermal stability and hydrophilicity.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Environmental Sciences
Wei-Hong Lin, Jeff Kuo, Shang-Lien Lo
Summary: The study found that exposure to a Xenon lamp increased the oxygen content of PP pellets and led to changes in the characteristic peaks of the FTIR pattern, indicating initiation of oxidation. The adsorption capacities of the PP pellets after 28 days of exposure to the Xenon lamp were significantly higher than that of the raw PP pellets, posing an increased potential risk to aquatic species. The adsorption behavior can be described by a pseudo-second-order model with specific rate constants, demonstrating the impact of exposure to the Xenon lamp on microplastic pollutants in natural waters.
Review
Environmental Sciences
Jessica H. Taylor, Salman Masoudi Soltani
Summary: This article introduces the application of carbonaceous adsorbents in the treatment of aquaculture effluent to improve environmental friendliness and sustainable development. The article discusses in detail the lifecycle of the adsorbents and their application in aqueous media, and highlights some research gaps.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Article
Multidisciplinary Sciences
Atta ul Haq, Muhammad Saeed, Muhammad Usman, Ameer Fawad Zahoor, Muhammad Naveed Anjum, Tahir Maqbool, Shazia Naheed, Muhammad Kashif
Summary: This study aimed to remove halosulfuron methyl from aqueous media using neem seed powder as a biosorbent, with optimal removal achieved in acidic conditions and the surface of NSP exhibiting positive charge. The results suggest that NSP may be a valuable, inexpensive, and ecofriendly biosorbent for pesticide removal.
SCIENTIFIC REPORTS
(2021)
Review
Engineering, Environmental
Sajad Tamjidi, Bahareh Kamyab Moghadas, Hossein Esmaeili, Farideh Shakerian Khoo, Gholamhossein Gholami, Mansoure Ghasemi
Summary: This study discusses the use of surfactant-modified adsorbents to remove metal ions from aqueous media. Through the study of heavy metals and various removal methods, and considering the isotherm, thermodynamic, and kinetic behaviors of the sorption process, it was found that adding surfactants such as SDS and CTAB at low temperatures significantly enhances adsorption efficiency and capacity.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2021)
Article
Environmental Sciences
Chaehwi Lim, Namgyu Kim, Junho Lee, Yeojoon Yoon
Summary: The study evaluated the adsorption performance of different types of microplastics on (in)organic pollutants and found that the adsorption of microplastic contaminants is more affected by the condition than by the type of microplastics.
Article
Chemistry, Physical
Fan Ding, Tao Shen, Qing Zhao, Xin Jin, Shanshan Mao, Manglai Gao
Summary: This study investigates the use of organo-vermiculites functionalized by bis-morpholinium gemini surfactants for the treatment of dyeing wastewater. The results show successful loading of modifiers onto the vermiculite surface, enhancing its hydrophobicity. The organo-vermiculites exhibit higher adsorption capacities for methyl orange/acid green 25, and the adsorption processes are well described by pseudo-second-order kinetic, Freundlich, and Langmuir models. Hydrophobic interaction is identified as the main driving force for adsorption, with pi-pi stacking and electrostatic interaction playing supporting roles.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Biochemistry & Molecular Biology
Lu Liu, Hongyang Ma, Madani Khan, Benjamin S. Hsiao
Summary: Cellulose membranes containing cationic and anionic groups were fabricated to achieve high adsorption capacity and low pressure drops. The adsorption performance of the membranes for Cr(VI) and Pb(II) ions was investigated, and their potential for wastewater treatment was demonstrated using spiral wound filtration cartridges.
Article
Environmental Sciences
Regiane C. Ferreira, Diogo Dias, Isabel Fonseca, Maria Bernardo, Joao Lourenco Castagnari Willimann Pimenta, Nuno Lapa, Maria A. S. D. de Barros
Summary: Bovine bone char (BC) was used for highly efficient simultaneous removal of paracetamol and Cu(2+) ions from aqueous solutions. The presence of paracetamol enhanced the affinity of Cu(2+) in the binary system, leading to a higher removal rate of Cu2+.
ENVIRONMENTAL TECHNOLOGY
(2022)
Article
Biotechnology & Applied Microbiology
Thi Hai Yen Doan, Thi Thuy Le, Thi Minh Thu Nguyen, Thi Hue Chu, Thi Ngoc Mai Pham, Thi Anh Huong Nguyen, Tien Duc Pham
Summary: The simultaneous adsorption of four anionic alkyl sulfate surfactants onto alpha alumina particles was systematically investigated. Adsorption isotherms increased with decreasing pH or increasing carbon chain length, and a common intersection point was observed at different salt concentrations, indicating a reversal in the contributions of electrostatic and hydrophobic interactions. The study demonstrated that adsorption onto alpha alumina particles was controlled by both electrostatic and hydrophobic interactions in accordance with Langmuir and two-step models.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Chemistry, Physical
Wen Song, Xue Zhang, Lu Zhang, Zihan Yu, Xuguang Li, Yanfei Li, Yu Cui, Yanxia Zhao, Liangguo Yan
Summary: In this study, the adsorption mechanisms of polyethylene glycol modified MgAl-LDH for Cu(II), Pb(II), and Cd(II) were qualitatively and quantitatively investigated. The results showed that the precipitation mechanism was the main contributor, accounting for 44.20%-72.12%. The contributions of complexation, isomorphous substitution, and electrostatic attraction to the total adsorption amounts were 12.43%-37.89%, 6.35%-18.81%, and <3.5%, respectively. After modification, the contribution of precipitation increased and complexation decreased.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Multidisciplinary
Thu Thao Pham, Rintaro Takahashi, Tien Duc Pham, Shin-ichi Yusa
Summary: Stable PIC micelles with a small hydrodynamic radius of approximately 20 nm were prepared in water by mixing double hydrophilic oppositely charged diblock copolymers. The stability of these micelles is attributed to the combined driving forces of electrostatic and hydrophobic interactions.
Article
Chemistry, Physical
Ngoc Bich Tran, Quang Khanh Nguyen, Thi Vinh Vu, Anh Quoc Hoang, Tien Duc Pham, Duc Thang Pham, Thi Anh Huong Nguyen, Thi Ngoc Mai Pham
Summary: In this study, positively charged and stable gold nanoparticles (AuNPs) were prepared using polydiallyldimethylammonium chloride (PDADMAC) as a stabilizing agent for the colorimetric detection of the organophosphorous pesticide, chlorpyrifos (CPF). The hydrophobic interaction between CPF and the PDADMAC outer shell significantly enhanced the sensitivity of the method, allowing for a low detection limit of 2.28 ppb. The developed sensor demonstrated high selectivity for CPF over other pesticides and can be used for detecting CPF in various real samples.
COLLOID AND POLYMER SCIENCE
(2023)
Article
Environmental Sciences
Thi Hai Yen Doan, Thu Ha Hoang, Van Anh, Duc Nam Vu, The Ninh Vu, Arun Lal Srivastav, Tien Duc Pham
Summary: The adsorption and transformation of tetracyclines on SDS surfactant-modified alpha-Al2O3 particles were investigated. The modified adsorbents showed significantly enhanced adsorption compared to the unmodified adsorbents. Optimal conditions were determined to be pH 4, NaCl 1 mM, 180 min contact time, and adsorbent dosage of 25 mg.mL-1. The maximum adsorption capacities were 320, 85, and 91 mg.g-1 for TC, OTC, and CTC, respectively. The SDS-modified alpha-Al2O3 particles could be effective adsorbents for removing tetracyclines from aqueous solutions.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Nguyen T. Dung, Bui M. Thuy, Le T. Son, Le V. Ngan, Vu D. Thao, Mari Takahashi, Shinya Maenosono, Tran V. Thu
Summary: In this work, NiCo-layered double hydroxide (NiCo-LDH) was synthesized as an effective peroxymonosulfate (PMS) activator for the degradation of organic pollutants in wastewater. The NiCo-LDH showed excellent catalytic performance and stability.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
V. D. Thao, N. T. Dung, N. D. Duc, T. T. Trang, D. T. M. Thanh, N. T. Phuong, N. T. Thuy, K. -y. a. Lin, N. N. Huy
Summary: In this study, Mn2O3 synthesized from Mn-MIL-100 was used as an efficient PMS activator for Rhodamine B (RhB) removal in water. The prepared Mn2O3 exhibited better PMS activation efficiency than other manganese compounds. Under certain conditions, the highest RhB degradation and COD removal efficiencies reached 98.2% and 72.15% respectively. The potential application of PMS activation by Mn2O3 in the treatment of non-or hard-biodegradable wastewater was suggested.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Environmental Sciences
Le Thi Thao, To Van Nguyen, Van Quy Nguyen, Ngoc Man Phan, Ki Jae Kim, Nguyen Nhat Huy, Nguyen Trung Dung
Summary: In this study, a magnetic MnFe2O4/alpha-MnO2 hybrid was developed as a highly effective catalyst for the removal of the azo dye Orange G from wastewater. The hybrid exhibited excellent stability and recyclability. The mechanism and reactive oxygen species responsible for the degradation of Orange G were investigated, and the results showed that the hybrid could effectively degrade Orange G with high efficiency.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2023)
Article
Materials Science, Multidisciplinary
Thi Hang Nguyen, Thi Thuy Linh Nguyen, Truong Chinh Nguyen, Thuy Hau Doan, Quang Huong Le, Quang Minh Bui, Thanh Son Le, Tien Duc Pham
Summary: The study investigates the adsorption behavior of cetyltrimethylammonium bromide (CTAB) on synthesized alpha aluminum hydroxide nanomaterials and its application in removing the pesticide lindane. The high-purity alpha-Al(OH)3 was confirmed through various methods. Electrostatic attraction between CTAB ions and the negatively charged alpha-Al(OH)3 surface increased the adsorption of CTAB with increasing pH. CTAB modified aluminum hydroxide nanoparticles (CMAH) achieved a 95% removal of lindane under optimum conditions. The study demonstrates that CMAH is an excellent adsorbent for lindane removal in water.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Thi Hai Yen Doan, Van Long Dang, Thi Thuy Trang Truong, Thi Ngan Vu, Thanh Son Le, Thi Minh Thu Nguyen, Minh Ngoc Nguyen, Thu Thao Pham, Shin-ichi Yusa, Tien Duc Pham
Summary: Highly positively charged poly(vinyl benzyl trimethylammonium chloride) (PVBMA) was successfully synthesized with a yield of approximately 82%. The molecular weight (M-w) of PVBMA was determined to be 343.45 g mol(-1) and the molecular weight distribution (D) was 2.4 by H-1 NMR and SEC measurements. PVBMA was used as an effective agent for surface modification of α-Al2O3, significantly enhancing the adsorptive removal of acid orange G (AOG) at all pH values.
CHEMISTRY-AN ASIAN JOURNAL
(2023)
Review
Environmental Sciences
Lata Rani, Arun Lal Srivastav, Jyotsna Kaushal, Dericks P. Shukla, Tien Duc Pham, Eric D. van Hullebusch
Summary: This paper provides a detailed discussion on the sources of uranium in the water environment, its effects on human health, as well as the application and mechanisms of metal-organic frameworks (MOFs) as adsorbents for uranium removal. MOFs, with their high surface area and porosity, are considered promising adsorbents for removing uranium from contaminated water.
ENVIRONMENTAL RESEARCH
(2023)
Article
Pharmacology & Pharmacy
Tianyu Hou, Siva Sankar Sana, Divya Vishambhar Kumbhakar, Huizhen Li, Mohamed Aly Saad Aly, Zhijun Zhang, Tien Duc Pham
Summary: The present study synthesized silver nanocomposites (AgNPs) micro-gel beads using biogenic perilla plant extract and different methods. The characterization of the nanocomposites was done using various techniques such as UV-Vis, FTIR, XRD, XPS, SEM, TEM, and TGA. The synthesized composites showed high potential in antibacterial activity and significant cytotoxicity against cancer cell lines, with minimal side effects on normal cells.
JOURNAL OF DRUG DELIVERY SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Environmental
Vu Dinh Thao, Nguyen Thi Hoa, Nguyen Thi Thuy, Nguyen Thanh Vinh, Nguyen Thi Cam Tien, Nguyen Trung Dung, Kun-Yi Andrew Lin, Dinh Thi Mai Thanh, Nguyen Thu Phuong, Tran Thi Trang, Manh B. Nguyen, Nguyen Nhat Huy
Summary: Fe,Mn-Cporous/CF materials were successfully synthesized and applied as an effective cathode in the electro-Fenton (EF) decomposition of Methylene Blue (MB) in water. The removal efficiency of MB, COD, and TOC after 60 min reached 98.49%, 81.80%, and 61.35%, respectively. Radical quenching tests confirmed the formation and active roles of & BULL;OH as the dominant radical. The stability and reusability of the electrode make it highly promising for practical applications in the treatment of wastewater containing recalcitrant organics.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Nguyen Quang Tung, Do Thi Cam Van, Dam Xuan Thang, Nguyen Thi Kim An, Tran Thi Trang, Bui Dinh Nhi, Nguyen Phuong Thao, Le The Son, Nguyen Nhat Huy, Nguyen Trung Dung
Summary: In this study, the CuCoFe-LDH catalyst was synthesized by hydrothermal method and used for degrading levo-floxacin (LFX) using peroxymonosulfate (PMS) activation. Various factors influencing the degradation of LFX were systematically investigated. The CuCoFe-LDH/PMS system showed high efficiency in removing LFX over a wide pH range and could effectively degrade different groups of antibiotics.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Vu Dinh Thao, Nguyen Trung Dung, Bui Ngoc Chuan, Le The Son, To Van Nguyen, Pham Chau Thuy, Nguyen Nhat Huy, Tran Viet Thu
Summary: In this study, a novel TiO2-VOx/PANi-PPy hybrid was fabricated for photocatalytic removal of Rhodamine B. The hybrid showed a reduced bandgap and improved photocatalytic performance compared to other materials. The study also investigated the influence of reaction parameters, identified reactive oxygen species, and proposed a photocatalytic mechanism.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Environmental Sciences
Thi Dung Le, Duc Thang Nguyen, Quynh Loan Nguyen, Viet Dung Duong, Thi Hai Yen Doan, Ashok Kumar Nadda, Swati Sharma, Thanh Son Le, Tien Duc Pham
Summary: A novel nanomaterial, cationic surfactant-coated TiO2 nanoparticle (CCTN), was fabricated and characterized thoroughly. The adsorption of cationic surfactant, CTAB, on TiO2 was studied under varying pH and ionic strength conditions. The potential application of CCTN in pesticide removal, specifically for 2,4-D, was investigated and found to have a high removal efficiency and adsorption capacity. The adsorption isotherms and mechanisms of 2,4-D on CCTN were also examined.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
Thi Thao Truong, Truong Tho Pham, Thi Tam Nguyen, Tien Duc Pham
Summary: The nanocomposites of CB55 were successfully synthesized using a two-step hydrothermal method, which showed high adsorptive removal of Pb2+ in water. CB55 had uniform dispersion of nanoparticles with high specific surface area and negatively charged surface. Under suitable conditions, CB55 nanocomposites exhibited high adsorption capacity and rate, mainly due to chemical forces.
MATERIALS TODAY COMMUNICATIONS
(2023)