Unlocking bimetallic active sites via a desalination strategy for photocatalytic reduction of atmospheric carbon dioxide.

Ultrathin two-dimensional (2D) metal oxyhalides exhibit outstanding photocatalytic properties with unique electronic and interfacial structures. Compared with monometallic oxyhalides, bimetallic oxyhalides are less explored. In this work, we have developed a novel top-down wet-chemistry desalination approach to remove the alkali-halide salt layer within the complicated precursor bulk structural matrix PbBiCsOCl, and successfully fabricate a new 2D ultrathin bimetallic oxyhalide PbBiOCl.

Hydroxylamine mediated Fenton-like interfacial reaction dynamics on sea urchin-like catalyst derived from spent LiFePO battery.

Herein, we converted spent LiFePO battery to the sea urchin-like material (SULM) with a highly efficient and environment-friendly method, which can contribute to building a zero-waste city. With SULM as a Fenton-like catalyst, a highly-efficient degradation process was realized for organic pollutants with interface and solution synergistic effect. In our SULM+NHOH+HO Fenton-like system, NHOH can effectively promote the interface iron (Fe(Ⅲ)/Fe(Ⅱ)) and solution iron (Fe(Ⅲ)/Fe(Ⅱ)) redox cycle, thus promoting the generation of reactive oxygen species (ROS).

BiO/BiO Nanoheterojunction for Highly Efficient Electrocatalytic CO Reduction to Formate.

Heterostructure engineering plays a vital role in regulating the material interface, thus boosting the electron transportation pathway in advanced catalysis. Herein, a novel BiO/BiO heterojunction catalyst was synthesized via a molten alkali-assisted dealumination strategy and exhibited rich structural dynamics for an electrocatalytic CO reduction reaction (ECORR). By coupling in situ X-ray diffraction and Raman spectroscopy measurements, we found that the as-synthesized BiO/BiO heterostructure can be transformed into a novel Bi/BiO Mott-Schottky heterostructure, leading to enhanced adsorption performance for CO and *OCHO intermediates.

Converting Spent LiFePO Battery into Zeolitic Phosphate for Highly Efficient Heavy Metal Adsorption.

Developing efficient recycling technologies for large-scale spent batteries is the key to build a zero-waste city. Herein, a [AlFePO]·[CHN]·[Li·4HO]·[12HO] (AlFePO-Li) zeolite, crystallizing in space group 4̅3 with = 16.6778(3) Å, has been constructed via the hydrothermal treatment of spent LiFePO battery.

Converting loess into zeolite for heavy metal polluted soil remediation based on "soil for soil-remediation" strategy.

Both soil erosion and soil contamination pose critical environmental threats to the Chinese Loess Plateau (CLP). Green, efficient and feasible remediation technologies are highly demanded to meet these challenges. Herein we propose a unique "soil for soil-remediation" strategy to remediate the heavy metal polluted soil in CLP by converting loess into zeolite for the first time.

High-efficiency core-shell magnetic heavy-metal absorbents derived from spent-LiFePO Battery.

Search for simple and efficient recycling methods to utilize spent lithium-ion batteries is crucial for achieving sustainable resource development and reducing the hazardous materials released from the spent batteries. Herein, we have developed a new strategy to utilize the spent LiFePO batteries by utilizing the cathode plate as raw material to synthesize mesoporous core-shell adsorbent Mm@SiO (Mm denoted as the magnetic material) through a simple alkaline leaching process. The as-converted material exhibits excellent adsorption capacity when it has been used to remove heavy metal ions in heavy metal polluted water.