Results 11 to 20 of about 1,256,043 (166)

Multi‐Site Chelation Enabled by 3D‐Printed TiO2 Hydrogel Monoliths for Dynamic Ge(IV) Recovery in Fixed Beds

open access: yesRare Metals, Volume 45, Issue 7, July 2026.
ABSTRACT Germanium is a critical dispersed metal, yet sustainable recovery from dilute solutions is limited by sorbents that are difficult to regenerate and operate in continuous mode. Here, we fabricate a regenerable 3D‐printed hydrogel monolith (3D‐ATO‐GS) by integrating hydroxyl‐rich amorphous TiO2 nanoparticles into an alginate/gelatin scaffold ...
Wenhuan Guo   +6 more
wiley   +1 more source

Synergistic Enhancement of Toluene Catalytic Oxidation via Pt‐Induced Oxygen Vacancies and Heterojunction Built‐In Electric Field

open access: yesRare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT Improving catalytic activity for volatile organic compounds (VOCs) oxidation and enhancing water‐tolerance stability remain challenging in practical applications. Herein, a composite catalyst integrating Pt/CoOx‐NiOx mesoporous nanorods (MNRs) with a phenyltriethoxysilane (PhTES)‐modified surface was fabricated via a facile route for toluene ...
Jiaqin He   +13 more
wiley   +1 more source

Atomically Dispersed Platinum Sites Immobilized on NiFe LDH by Controlling Localized Amorphization for Efficient Alkaline Electrocatalytic Hydrogen Evolution

open access: yesRare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT Platinum (Pt) single‐atom catalyst (SAC) shows great promise for hydrogen evolution reaction (HER), but faces a huge challenge in activity enhancement due to the isolated single‐atom sites. Fabricating support with partially amorphous (pa) structures to realize the synergetic interaction in neighboring single atoms could facilitate H2O ...
Yanhui Song   +9 more
wiley   +1 more source

Upcycling of Waste Polyethylene Terephthalate Plastics to Fabricate Cobalt–Nickel Metal–Organic Frameworks and Their Phosphides for Efficient Oxygen Evolution Reaction

open access: yesRare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT The urgent environmental crisis caused by polyethylene terephthalate (PET) waste necessitates efficient upcycling strategies. Herein, we establish a novel pathway to transform waste PET plastic into a high‐performance catalytic material for mediating the oxygen evolution reaction (OER). Through a one‐step hydrothermal process, waste PET serves
Xin Wang   +5 more
wiley   +1 more source

Gadolinium‐Induced Activation of CoNiO2 for Efficient Oxygen Evolution: A Structural and Electronic Modulation Approach

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Multicomponent transition metal oxides (TMOs) incorporating rare‐earth (RE) elements have emerged as promising materials for the oxygen evolution reaction (OER). However, knowledge of how to regulate the structure of TMO‐based nanomaterials through RE incorporation to enhance catalytic performance remains limited.
Bolin Zhao   +6 more
wiley   +1 more source

Dimensional Assembly Engineering of Ce‐MOF Interfaces for Selective Recognition of Phytic Acid

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Selective molecular recognition is central to chemical sensing yet discriminating structurally similar molecules at complex interfaces remains challenging. Traditional strategies based on tuning size, charge, or binding‐site chemistry often suffer from limited flexibility.
Qiang Miao   +7 more
wiley   +1 more source

Guanidinium‐Based Covalent Organic Frameworks via Pore Wall Regulation: Efficient Selective Palladium Recovery From Metallurgical Wastewater

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Recovering palladium (Pd) from low‐concentration metallurgical wastewater still poses significant challenges. In this study, triaminoguanidine hydrochloride was used as the key functional site, and three guanidine‐functionalized covalent organic frameworks (GCOFs) were successfully constructed by adjusting the substituents (–H, –OH, and –OCH3)
Jiaxing Xiong   +9 more
wiley   +1 more source

Synergistic Activation of the Inert (001) Facet in Janus ZnIn2S4 Through Co 3d and P 3p Orbital Hybridization for Superior Photocatalytic Hydrogen Evolution

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT The Janus structure of ZnIn2S4 (ZIS) endows it with an intrinsic built‐in electric field that effectively drives photogenerated charge separation. However, this very structure also renders the predominant (001) facet (In–S termination) catalytically inert due to its low electron density and high energy barrier for the hydrogen evolution ...
Qingao Zhou   +8 more
wiley   +1 more source

Sustainable Nanocellulose‐Based Materials for Environmental Remediation: Structure–Function Relationships and Applications

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Environmental pollution across water, air, and soil systems poses escalating threats to human health and ecosystem stability, driven by heavy metals, persistent organic pollutants, particulate matter (PM), bioaerosols, and toxic gases. Conventional remediation technologies often suffer from limited selectivity, insufficient efficiency, and the
Junjie Qi   +6 more
wiley   +1 more source

带结构正电荷的镁铝氢氧化物去除水体中磷的研究

open access: yesGongye shui chuli, 2014
以带结构正电荷的镁铝层状双金属氢氧化物(Mg-Al-LDH)溶胶为吸附剂系统研究了不同因素对磷吸附去除性能的影响,结果表明:其吸附动力学和吸附等温线分别符合准二级、Elovich速率方程和Langmuir方程,理论饱和吸附量可达55.99~60.90 mg/g。吸附过程的ΔG0为-28.78~-20.67 kJ/mol,吸附机理以静电吸引和化学吸附为主导。无机和有机阴离子会抑制磷在吸附剂上的吸附。200 mg/L的Mg-Al-LDH可以吸附90%以上的溶解性反应磷和84%的总磷 ...
谢发之   +5 more
doaj  

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