• Issue

    Journal of the Chinese Chemical Society: Volume 68, Issue 11

    2037-2224
    November 2021

COVER

Free Access

Cover: Journal of the Chinese Chemical Society 12/2021

  • Page: 2037
  • First Published: 28 November 2021
Cover: Journal of the Chinese Chemical Society 12/2021

In this figure, the Rayleigh-instability-induced transformation of gold nanoparticle/polystyrene (AuNPs©PS) hybrid materials confined in the nanopores of anodic aluminum oxide (AAO) templates is investigated. Upon thermal annealing, the AuNPs©PS nanotubes undergo the Rayleigh-instabilityinduced transformation and four morphologies are obtained. More details about this figure will be discussed by Prof. Jiun-Tai Chen and his co-workers on page 2045-2053 in this issue.

CONTENTS

Free Access

Contents: Journal of the Chinese Chemical Society 12/2021

  • Pages: 2038-2044
  • First Published: 28 November 2021

ISSUE INFORMATION

INVITED PAPER

Rayleigh-instability-induced transformation for confined polystyrene-grafted gold nanoparticles in anodic aluminum oxide templates

  • Pages: 2045-2053
  • First Published: 08 September 2021
Rayleigh-instability-induced transformation for confined polystyrene-grafted gold nanoparticles in anodic aluminum oxide templates

Weinvestigate the Rayleigh-instability-induced transformation of goldnanoparticle/polystyrene (AuNPs@PS) hybrid materials confined in the nanoporesof anodic aluminum oxide (AAO) templates. The AuNPs@PS hybrid materials arethen introduced into the nanopores of the AAO templates by the solution wettingmethod to obtain the AuNPs@PS nanotubes. Upon thermal annealing, the AuNPs@PSnanotubes undergo the Rayleigh-instability-induced transformation and fourmorphologies are obtained.

ARTICLES

Size-dependent Auger recombination in CdSe quantum dots studied by transient absorption spectroscopy

  • Pages: 2054-2059
  • First Published: 23 July 2021
Size-dependent Auger recombination in CdSe quantum dots studied by transient absorption spectroscopy

This work is about the bi-exciton Auger recombination process by virtue of the transient absorption spectroscopy of CdSe QDs with various sizes. The graphical abstract shows the bi-exciton lifetime (τBX) as a function of size for CdSe QDs in a narrow size range. The inset is a schematic diagram illustrating the bi-exciton Auger recombination process.

Dipole-bound states and substituent effects of Breslow intermediates in the enolate form

  • Pages: 2060-2070
  • First Published: 31 August 2021
Dipole-bound states and substituent effects of Breslow intermediates in the enolate form

Electronic structure of the enolate Breslow intermediates demonstrates that metastable dipole-bound states could act as doorways to form radicals. Bulky and electron-withdrawing substituents tend to stabilize the anionic ground states.

Fe3O4@C@prNHSO3H: A novel magnetically recoverable heterogeneous catalyst in green synthesis of diverse triazoles

  • Pages: 2071-2084
  • First Published: 20 August 2021
Fe3O4@C@prNHSO3H: A novel magnetically recoverable heterogeneous catalyst in green synthesis of diverse triazoles

A novel Fe3O4@C@PrNHSO3H NPs were proposed, synthesized, and fully described by TEM, FE-SEM, EDX, VSM, TGA, XRD, FT-IR, and XPS analysis.The Fe3O4@C@PrNHSO3H NPs were introduced as an efficient catalyst in the green synthesis of triazole derivatives.The Fe3O4@C@PrNHSO3H NPs could be effectively recycled and reused for six runs with the desired catalytic activity.

Magnetic field-assisted photochemical oxidation of benzyl alcohol to corresponding aldehydes by introducing TiO2(P25)-ZnO/Fe3+ as a novel nanophotocatalyst

  • Pages: 2085-2092
  • First Published: 22 August 2021
Magnetic field-assisted photochemical oxidation of benzyl alcohol to corresponding aldehydes by introducing TiO2(P25)-ZnO/Fe3+ as a novel nanophotocatalyst

TiO2(P25)-ZnO was surface modified by Fe3+. The synthesized nanophotocatalyst activity was well determined by, diffuse reflectance spectroscopy, energy dispersive X-ray, X-ray diffraction, and scanning electron microscope analyses. Then was applied for the selective oxidation of benzyl alcohols to the corresponding aldehydes. For the first time, the presence of an external magnetic field (5,000 G) contemporary 12w blue LED irradiation on the photoreaction was studied. Valuable results were obtained. Photoreaction was performed in the shortest time. As a result of that the time of photoreaction declined considerably up to 65%.

Eriobotrya japonica assisted green synthesis of g-C3N4 nanocomposites and its exceptional photoactivities for doxycycline and rhodamine B degradation with mechanism insight

  • Pages: 2093-2102
  • First Published: 26 August 2021
Eriobotrya japonica assisted green synthesis of g-C3N4 nanocomposites and its exceptional photoactivities for doxycycline and rhodamine B degradation with mechanism insight

A comprehensive mechanism for the Eriobotrya japonica mediated highly efficient green g-C3N4 coupled with SnO2 nanosheet for doxycycline and rhodamine B mineralization.

The picric acid removal from aqueous solutions by multi-walled carbon nanotubes/EDTA/carboxymethylcellulose nanocomposite: Central composite design optimization, kinetic, and isotherm studies

  • Pages: 2103-2117
  • First Published: 09 September 2021
The picric acid removal from aqueous solutions by multi-walled carbon nanotubes/EDTA/carboxymethylcellulose nanocomposite: Central composite design optimization, kinetic, and isotherm studies

The removal of picric acid using MWCNT-EDTA-CMC was studied for the first time. Picric acid adsorption by MWCNT-EDTA-CMC was optimized by RSM-CCD. Optimum conditions were obtained 0.05 g dosage, pH 3, 30 mg L−1 concentration at 60 ml of solution. The pseudo second-order kinetic and Freundlich isotherm models best described the picric adsorption. The MWCNT-EDTA-CMC composite is reusable for 3th cycle.

Photocatalytic activity enhancement of carbon-doped g-C3N4 by synthesis of nanocomposite with Ag2O and α-Fe2O3

  • Pages: 2118-2131
  • First Published: 22 September 2021
Photocatalytic activity enhancement of carbon-doped g-C3N4 by synthesis of nanocomposite with Ag2O and α-Fe2O3

Carbon-doped g-C3N4 (CGNS) nanocomposite with Ag2O and α-Fe2O3 has been synthesized to improve g-C3N4 photocatalytic activity. The prepared CGNS/Ag2O/α-Fe2O3 (GAF (with mass ratio 3:2:1)) nanocomposite exhibits the expanded visible light absorption region leading to the enhanced photocatalytic performance for Acid Red 14 (AR14) degradation. A nonlinear empirical kinetic model development for prediction of degradation efficiency of AR14 on nanocomposite.

Synthesis of nanorods assembled V-doped WO3 microspheres and the catalytic performance in thermal decomposition of ammonium perchlorate

  • Pages: 2132-2139
  • First Published: 05 August 2021
Synthesis of nanorods assembled V-doped WO3 microspheres and the catalytic performance in thermal decomposition of ammonium perchlorate

Nanorods assembled V-doped WO3 microspheres were fabricated via a one-pot hydrothermal method. The formation mechanism was discussed and the catalytic properties on the thermal decomposition of ammonium perchlorate were evaluated.

Synthesis, characterization, theoretical study and biological activity studies of the mercury (II) complexes of 5-methyl-5-(4-nitrophenyl)-hydantoin

  • Pages: 2140-2150
  • First Published: 25 August 2021
Synthesis, characterization, theoretical study and biological activity studies of the mercury (II) complexes of 5-methyl-5-(4-nitrophenyl)-hydantoin

This paper explains the synthesis and characterization, theoretical study andbiological activity evaluation of a series of dimeric mercury (II) complexesderived from hydantoin ligand and mercury halides.

Effect of COOH in organic linkers on the hydrochlorination performance of SnMOF-based catalysts

  • Pages: 2151-2163
  • First Published: 27 September 2021
Effect of <span class='icomoon'></span>COOH in organic linkers on the hydrochlorination performance of SnMOF-based catalysts

A series of tin-organic frameworks materials (SnMOF) were synthesized using different organic linkers, including phthalic acid, isophthalic acid, 1,4-dicarboxybenzene, and 1,3,5-benzenetricarboxylic acid. SnMOF/AC as catalysts for acetylene hydrochlorination exhibits better catalytic performance.

Open Access

A pair of chiral Cu(II)-Tb(III)-Fe(III) heterotrimetallic enantiomers: Structural, luminescent, and magnetic studies

  • Pages: 2177-2184
  • First Published: 17 September 2021
A pair of chiral Cu(II)-Tb(III)-Fe(III) heterotrimetallic enantiomers: Structural, luminescent, and magnetic studies

Complex 1, a chiral CuIITbIIIFeIII heterotrimetallic compound derived from H2(R,R)-valcy, has been prepared and structurally characterized by X-ray single-crystal diffraction. Magnetic studies show overall weak ferromagnetic interaction and magnetic anisotropy. Complexes 1 and 2 (enantiomer of 1) are isomorphous exhibiting similar fluorescence properties.

An effervescence-assisted dispersive liquid–liquid micro-extraction of captopril based on hydrophobic deep eutectic solvent

  • Pages: 2185-2193
  • First Published: 23 August 2021
An effervescence-assisted dispersive liquid–liquid micro-extraction of captopril based on hydrophobic deep eutectic solvent

The HDES was synthesized from Aliquat 336 as hydrogen bond acceptor and β-CD as hydrogen bond donor has significant properties, such as low volatility, wide liquid range, low vapor pressure, and nontoxicity. The in situ produced CO2 bubbles resulting from the reaction between acetic acid and NaHCO3 was used as a disperser to disperse the extraction solvent (HDES).

Photoelectrochemical biosensor for lead ion determination based on complementary strand aptamers

  • Pages: 2194-2201
  • First Published: 03 August 2021
Photoelectrochemical biosensor for lead ion determination based on complementary strand aptamers

In this paper, a simple and sensitive photoelectrochemical method was designed for lead ion detection by using ZnO nanorods as the photoactive substrate and complementary strand aptamers as target recognition element. This method provided some experimental support for further exploration and establishment of complex aptamer recognition system, as well as quantitative analysis of heavy metal ions.

Response surface methodology optimization of supramolecular dispersive liquid-liquid microextraction-solidified floating organic drop of brilliant green and its spectrophotometric determination

  • Pages: 2202-2210
  • First Published: 12 September 2021
Response surface methodology optimization of supramolecular dispersive liquid-liquid microextraction-solidified floating organic drop of brilliant green and its spectrophotometric determination

A supramolecular dispersive liquid-liquid microextraction-solidified floating organic drop method is presented for the extraction of brilliant green before its determination by spectrophotometry. The ion-pair of brilliant green with sodium dodecyl sulfate is extracted into the coacervates made up of decanoic acid reverse micelles in the tetrahydrofuran-water mixture. The effective parameters on the extraction of the analyte are optimized using the central composite design.

Synthesis of rod-shaped dipolar compounds for the study of long-range electronic interactions

  • Pages: 2211-2223
  • First Published: 27 July 2021
Synthesis of rod-shaped dipolar compounds for the study of long-range electronic interactions

Two series of rod-shaped organic compounds are synthesized, each of them contains an electron donor, an electron acceptor, and a rigid hydrocarbon spacer. The UV/Vis spectra of the free energy of the excited state electron transfer process are estimated according to the Marcus relationship.

PREVIEW

Free Access

Preview: Journal of the Chinese Chemical Society 12/2021

  • Page: 2224
  • First Published: 28 November 2021