Article
Engineering, Environmental
Nor Akalili Ahmad, Lih Jang Tam, Pei Sean Goh, Nurfirzanah Azman, Ahmad Fauzi Ismail, Khairulnadzmi Jamaluddin, Gangasalam Arthanareeswaran
Summary: In this study, a thin film composite (TFC) reverse osmosis (RO) membrane with high long-term stability and antifouling properties was developed by spray coating the polyamide (PA) layer with oppositely charged titania nanosheets (TNS). The manufactured membranes showed improved permeability and radionuclide rejection, making them suitable for treating radionuclide-containing wastewater. The findings highlight the potential of tailored TFC RO membranes in the treatment of radioactive wastewater.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Mingyang Wang, Hu Li, Qian Xin, Mingyu Zhuang, Zhiyuan Wang, Yuzhuo Yuan, Xuemei Yin, Xiaoxiao Zheng, Jiawei Zhang, Aimin Song
Summary: Self-assembled monolayer (SAM) treatment is effective for improving the electrical performance of organic thin-film transistors (TFTs) by reducing interface traps. However, it has been rarely explored in inorganic TFTs due to potential damage to thin SAMs during the deposition processes. This study demonstrates the feasibility of using SAM treatment on the gate dielectric of inorganic p-type Zn-doped CuI TFTs to enhance their performance significantly, including a reduction in interface trap density, an increase in hole mobility, an improvement in on/off ratio, and an enhancement in bias stress stability.
APPLIED SURFACE SCIENCE
(2023)
Article
Multidisciplinary Sciences
Samuel J. Lounder, Ayse Asatekin
Summary: Research shows that water filtration membranes with cross-linked zwitterionic copolymer membranes exhibit high ion selectivity, controlling salt partitioning and diffusivity for efficient salt separation. These membranes also achieve high fluoride retention and high chloride passage in saline mixtures.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Materials Science, Multidisciplinary
Yi-Lung Cheng, Wei-Fan Peng, Chih-Yen Lee, Giin-Shan Chen, Jau-Shiung Fang
Summary: SAMs formed on SiO2 and p-SiOCH films were investigated in this study. The results showed that SAMs enhanced adhesion and dielectric breakdown field. In p-SiOCH films, SAMs sealed surface pores and had higher coverage, improving the effectiveness of Cu barriers. However, SAMs weakened the barrier effect in SiO2 films and acted as interfacial adhesion enhancers.
Review
Chemistry, Multidisciplinary
Shao-Ping Zheng, Li-Bo Huang, Zhanhu Sun, Mihail Barboiu
Summary: Self-assembled ion channels play important roles in mimicking natural ion channel proteins with rich conductive states. They exhibit active transport in lipid bilayer membranes and have potential applications and future development prospects.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Dae-Sung Park, Aurora Diana Rata, Rasmus Tindal Dahm, Kanghyun Chu, Yulin Gan, Igor Maznichenko, Sergey Ostanin, Felix Trier, Hionsuck Baik, Woo Seok Choi, Chel-Jong Choi, Young Heon Kim, Gregory Jon Rees, Haflidi Petur Gislason, Pawel Adam Buczek, Ingrid Mertig, Mihai Adrian Ionescu, Arthur Ernst, Kathrin Doerr, Paul Muralt, Nini Pryds
Summary: Complex oxide heterointerfaces offer numerous physical properties and functionalities, leading to emerging technologies. Vertically aligned nanostructure (VAN) films, formed through a self-assembling bottom-up deposition method, show great promise in terms of structural flexibility and property tunability. This study introduces a new approach of bottom-up self-assembly using a mixture of 2D layer-by-layer film growth and 3D VAN film growth. The resulting two-phase nanocomposite thin films, based on LaAlO3:LaBO3, grown on a lattice-mismatched SrTiO3001 (001) single crystal, exhibit coexistence of multiple interfacial properties, including 2D electron gas and magnetic anisotropy. This approach offers multidimensional film heterostructures, enriching emergent phenomena for multifunctional applications.
ADVANCED MATERIALS
(2023)
Article
Engineering, Chemical
Ying Mei, Yushan Huang, Haochen Xu, Wulin Yang, Xiaocheng Lin
Summary: This study integrated nanofiltration (NF) and Fenton-like advanced oxidation by tailoring a thin film composite NF membrane (TFNi) with an in situ synthesized PDA/MnO2 interlayer. The TFNi membrane was optimized by controlling the amount of MnO2 nanoparticles incorporated within the interlayer to achieve self-cleaning property and improved water permeance. Experimental results showed that the generation of free radicals by the MnO2-H2O2 system effectively reduced fouling and maintained high flux recovery ratio (FRR). H2O2-initiated self-cleaning of TFNi holds great potential for efficient treatment of dye wastewater.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Review
Environmental Sciences
Qingqing Zhou, Xule Zhou, Ruihao Zheng, Zifeng Liu, Jiade Wang
Summary: This article discusses the electrochemical oxidation process based on hydroxyl radicals generated on lead dioxide and the important role of titanium-based lead dioxide electrodes in this process. It also explores methods of modifying the structure and properties of the lead dioxide active surface layer by doping transition metals, rare earth metals, nonmetals, etc. Comparisons of common preparation methods of lead dioxide are made, along with discussions on its electrochemical oxidation performance and suitable operating conditions in various wastewaters, and a systematic analysis of the factors influencing contaminant removal kinetics.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Optics
Na Lin, Ran Tao, Zhijiang Chen, Qifa Pan, Zhihao Zhu, Bo Gao, Wensheng Ren
Summary: A new fluorescent film sensor has been designed and fabricated for the detection of UO22+, with a low detection limit of 32 nM. The sensor shows higher selectivity towards UO22+ compared to other metal ions, and can be used as a convenient tool for UO22+ detection.
JOURNAL OF LUMINESCENCE
(2022)
Article
Green & Sustainable Science & Technology
Ashok Maraddi, Mahaveer Halakarni, M. Manohara Halanur, S. K. Nataraj
Summary: Recently, there has been increasing attention on biopolymer based thin film composite (TFC) membranes due to their sustainability. However, biopolymers are prone to fouling, making long-term use and recycling a challenge for industrial applications. This study aims to develop an anti-fouling membrane with self-cleaning ability using multifunctional nanocomposites to extend its shelf life. An iron-based metal organic framework (Fe-MOF) incorporated crosslinked chitosan-based loose nanofiltration membrane was developed for selective filtration of solute and wastewater treatment. The optimized membrane demonstrated high rejection rates for dyes and low rejection rates for MgSO4, making it a promising candidate for wastewater treatment.
SUSTAINABLE MATERIALS AND TECHNOLOGIES
(2023)
Article
Engineering, Biomedical
Li-Jung Kang, Juhwan Yoon, Jun Gi Rho, Hwa Seung Han, Seulbi Lee, Young Soo Oh, Hwan Kim, Eunha Kim, Seok Jung Kim, Yong Taik Lim, Jae Hyung Park, Woo Keun Song, Siyoung Yang, Wook Kim
Summary: This study suggests that an empty self-assembled hyaluronic acid nanoparticle (HA-NP) may be a potential therapeutic agent targeting CD44 for osteoarthritis treatment. The CD44-NF-kappa B-catabolic gene axis is identified as an underlying mechanism of destructive cartilage disorders.
Article
Engineering, Chemical
Xiang-Yu Yan, Qian Wang, Yue Wang, Zheng-Jun Fu, Zhen-Yuan Wang, Bhekie Mamba, Shi-Peng Sun
Summary: This study presents a nanofiltration membrane for the treatment of textile wastewater, which exhibits fast and precise separation performance and self-cleaning capabilities. The membrane, prepared using a sol-gel assisted interfacial polymerization technique, possesses high water permeability and good photocatalytic properties, and remains stable during multiple fouling-irradiation cycles.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Wan-Tae Kim, Joo-Won Lee, Hong-Eun An, So-Hye Cho, Sohee Jeong
Summary: This study presents a chemical-free approach to produce an AlOOH adsorbent on aluminum sheets for effective removal of fluoride ions from water. The optimized adsorbent shows high removal efficiency, cost-effectiveness, eco-friendliness, and sustainability, making it a potential solution for engineered water treatment systems.
Article
Green & Sustainable Science & Technology
Yuxiu Chen, Simone Krings, Alexia M. J. M. Beale, Bing Guo, Suzanne Hingley-Wilson, Joseph L. Keddie
Summary: Biofilm bioreactors have become increasingly popular in the wastewater industry due to their ability to achieve higher cell densities and reaction rates. A new method using a biocoating or living paint made from a synthetic biofilm has been introduced to improve the viability and formation speed of nitrifying bacteria. This method utilizes two colloid science phenomena to encapsulate and convert desiccation-sensitive nitrifying bacteria effectively.
ADVANCED SUSTAINABLE SYSTEMS
(2022)
Article
Nanoscience & Nanotechnology
Farivash Gholamirad, Jinqun Ge, Monirosadat Sadati, Guoan Wang, Nader Taheri-Qazvini
Summary: Hybrid materials based on MXene and positively charged poly(allylamine hydrochloride) (PAH) chains were synthesized and their morphology, electrical conductivity, and EMI shielding effectiveness were studied. The results showed that PAH chains enhanced the oxidation stability and integrity of the MXene structures. The morphology and electrical conductivity of the hybrids could be tuned, and the EMI shielding performance was influenced by the conductive network configuration.
ACS APPLIED MATERIALS & INTERFACES
(2022)
