A walnut shell biochar-nano zero-valent iron composite membrane for the degradation of carbamazepine via persulfate activation.

In this study, novel walnut shell biochar-nano zero-valent iron nanocomposites (WSBC-nZVI) were synthesized using a combined pyrolysis/reduction process. WSBC-nZVI displayed a high removal efficiency (86 %) for carbamazepine (CBZ) compared with walnut shell biochar (70 %) and nano zero-valent iron (76 %) in the presence of persulfate (PS) (0.5 g/L catalyst, 10 mg/L CBZ, 1 mM persulfate).

Immobilization of photocatalytic materials for (waste)water treatment using 3D printing technology - advances and challenges.

Photocatalysis has been considered a promising technology for the elimination of a wide range of pollutants in water. Various types of photocatalysts (i.e.

ZnO/γ-FeO/Bentonite: An Efficient Solar-Light Active Magnetic Photocatalyst for the Degradation of Pharmaceutical Active Compounds.

For applications related to the photocatalytic degradation of environmental contaminants, engineered nanomaterials (ENMs) must demonstrate not only a high photocatalytic potential, but also a low tendency to agglomeration, along with the ability to be easily collected after use. In this manuscript, a two-step process was implemented for the synthesis of ZnO, ZnO/Bentonite and the magnetic ZnO/γ-FeO/Bentonite nanocomposite. The synthesized materials were characterized using various techniques, and their performance in the degradation of pharmaceutical active compounds (PhACs), including ciprofloxacin (CIP), sulfamethoxazole (SMX), and carbamazepine (CBZ) was evaluated under various operating conditions, namely the type and dosage of the applied materials, pH, concentration of pollutants, and their appearance form in the medium (i.

Synthesis of Ni-doped anatase TiO single crystals loaded on wood-based activated carbon for enhanced photodegradation of triphenylmethane dyes.

In this work, the Ni-doped anatase TiO single crystals loaded on activated carbon (Ni-T/AC) were synthesized by a sol-gel method. The chemical compositions and physical properties of as-prepared materials were analyzed by XRD, TEM, BET, FTIR, XPS, and PL characterizations. The obtained results implied that all of samples presented anatase phase with a clear mesoporous structure.

Synthesis and characterization of Ni-doped anatase TiO loaded on magnetic activated carbon for rapidly removing triphenylmethane dyes.

In this work, we employed the in situ synthesis method to implant FeO into activated carbon (AC), in which the synthesis of the magnetic AC (MAC) was realized. Thence, Ni-doped anatase TiO (NATiO) were anchored on different addition amount of MAC to synthesize the series of Ni-TiO/MAC photocatalysts. The chemical compositions and physical properties of these nanocomposites were analyzed by various characterization technologies.

Surfactants-assisted preparation of BiVO with novel morphologies via microwave method and CdS decoration for enhanced photocatalytic properties.

The development of a highly efficient and rapid method for the accurate preparation of photocatalysts with novel morphologies is a hot research topic. The different morphologies of BiVO was prepared using surfactants-assisted microwave method, and demonstrated irregular (no surfactant), octahedral (sodium dodecyl benzene sulfonate), olive-like (polyvinylpyrrolidone) and hollow structures (ethylenediaminetetraacetic acid), respectively. The BiVO-CdS were synthesized using the chemical-bath-deposition method with different morphologies of BiVO as the substrates.

Hierarchical fabrication Z-scheme photocatalyst of BiVO (0 4 0)-Ag@CdS for enhanced photocatalytic properties under simulated sunlight irradiation.

Interfacial charge separation and heterojunction system are conductive to improving its photocatalytic performance. Herein, we designed a novel photocatalyst of Z-scheme BiVO (0 4 0)-Ag@CdS, in which Ag was photo-deposition on the (0 4 0) facets of BiVO as the "linker" between BiVO and CdS. Characterizations of XRD and SEM clearly revealed that the BiVO (0 4 0)-Ag@CdS was prepared through hierarchical fabrication.

Constructing a Z-scheme Heterojunction of Egg-Like Core@shell CdS@TiO₂ Photocatalyst via a Facile Reflux Method for Enhanced Photocatalytic Performance.

A well designed and accurate method of control of different shell thickness and electronic transmission in a Z-scheme core@shell system is conducive to obtaining an optimum photocatalytic performance. Herein, the Z-scheme heterojunction of egg-like core@shell CdS@TiO₂photocatalysts with controlled shell thickness (13 nm, 15 nm, 17 nm, 22 nm) were synthesized by a facile reflux method, and the CdS@TiO₂ structure was proved by a series of characterizations. The photodegradation ratio on methylene blue and tetracycline hydrochloride over the 0.

Fabrication of interlayer β-CD/g-CN@MoS for highly enhanced photodegradation of glyphosate under simulated sunlight irradiation.

Graphitic carbon nitride (g-CN) has been considered to be a promising metal-free photocatalyst, although the high recombination rate of charge carriers and poor absorption of visible light have limited its applications. In order to overcome these problems, an interlayer composite photocatalyst that comprised β-cyclodextrin (β-CD), oxygen-doped CN (O-CN) and molybdenum disulfide (MoS) was successfully constructed for the highly enhanced photodegradation of glyphosate in this study. The structure and morphology, optical properties, and photoelectrochemical properties of the prepared photocatalyst were characterized a series of characterization techniques.

Removal Effect of Atrazine in Co-Solution with Bisphenol A or Humic Acid by Different Activated Carbons.

Activated carbons (ACs) based on apricot shells (AS), wood (W), and walnut shells (WS) were applied to adsorb atrazine in co-solutions. To study the effect of Bisphenol A (BPA) on the adsorption behavior of atrazine, the adsorption performance of ACs for BPA in single solution was studied. The results demonstrated that the adsorption kinetics of BPA fitted the pseudo-second-order model, the adsorption isotherms of BPA followed the Langmuir model.

A DNA microarray for fission yeast: minimal changes in global gene expression after temperature shift.

Completion of the fission yeast genome sequence has opened up possibilities for post-genomic approaches. We have constructed a DNA microarray for genome-wide gene expression analysis in fission yeast. The microarray contains DNA fragments, PCR-amplified from a genomic DNA template, that represent > 99% of the 5000 or so annotated fission yeast genes, as well as a number of control sequences.