Thermal perturbation nucleation and growth of silver molybdate nanoclusters by a dynamic template route

Abstract

Silver molybdate IJAg 2 MoO 4 ) nanoclusters were first prepared by a dynamic template route under 20°C.The heat released from the polymerization of the acrylamide (AM) assisted templates induced high active sites to be generated on the surface of the crystal where more attracted nuclei were adsorbed on. The continuously formed nuclei assembled together and the nanoclusters were formed. The paper provided an explanation for the formation of the Ag 2 MoO 4 nanoclusters through the research on reaction conditions; on the other hand, the comparison of photocatalytic performance and antibacterial properties between the Ag 2 MoO 4 nanoclusters and the Ag 2 MoO 4 crystals of other morphologies showed that the Ag 2 MoO 4 nanoclusters had better photocatalytic and antibacterial activities, which was a preliminary perspective for the application of the nanocluster materials.CrystEngComm, 2015, 17, 5511-5521 | 5511This journal is

Unvealing the role of β-Ag2MoO4 microcrystals to the improvement of antibacterial activity

“…Metal molybdates such as A x MoO z (where A is a monovalent, divalent, or trivalent metal ion) have recently been investigated intensively [1,2,11,12,[3][4][5][6][7][8][9][10] owing to their chemical stability and unique crystal structure (layers of molybdenum oxide octahedra separated by the metal ions) [13], which make them suitable for a wide range of applications. Particularly, silver molybdates have been investigated in the fields of lubrication [14,15], humidity and gas sensors [16,17], surface enhanced Raman scattering techniques [18,19], photocatalysis [11][12][13]20,21], and photoluminescence [20,22,23]. A plethora of synthetic methods have been used to harness these applications, such as hydrothermal [19,[24][25][26][27], solution-based chemical reaction [18], co-precipitation [23,28], dynamic template route [21], laser annealing [29], and microwave-assisted hydrothermal methods [20,30].…”

“…Particularly, silver molybdates have been investigated in the fields of lubrication [14,15], humidity and gas sensors [16,17], surface enhanced Raman scattering techniques [18,19], photocatalysis [11][12][13]20,21], and photoluminescence [20,22,23]. A plethora of synthetic methods have been used to harness these applications, such as hydrothermal [19,[24][25][26][27], solution-based chemical reaction [18], co-precipitation [23,28], dynamic template route [21], laser annealing [29], and microwave-assisted hydrothermal methods [20,30]. In this context, Ng and Fan [31] have recently reported the preparation of β-Ag 2 MoO 4 crystals with high-index facets via the delicate tuning of the supersaturation conditions during crystal growth.…”

Fabrication of potato-like silver molybdate microstructures for photocatalytic degradation of chronic toxicity ciprofloxacin and highly selective electrochemical detection of H2O2

“…The photocatalytic activity mainly depends on the crystal and electronic structures of materials that affect the energy band structure and the efficiency of charge carrier transfer. Moreover, to improve their physicochemical properties of the photocatalyst, researchers have growled a number of approaches to obtain the different morphologies of Ag 2 MoO 4 including nanoparticles, nanorods, nanowires, wire-like nanostructures, nanoclusters, broom-like, flower-like microstructures and microcrystals 36 41 46 47 48 49 50 . However, to the best of our knowledge, we reported the synthesis of potato-like Ag 2 MoO 4 microstructure, its applications for the photocatalytic degradation of CIP and electrochemical detection of H 2 O 2 for the first time.…”

Structural, morphological and optical investigation of β-Ag2MoO4 microcrystals obtained with different polar solvents

“…Moreover, the final products may be composed of particles having irregular shapes with non-homogeneous size distribution as well as contain secondary phases. In recent years, pure β-Ag 2 MoO 4 crystals have been synthesized by co-precipitation, 11 microwave-assisted hydrothermal synthesis, 11,12 dynamic template route through polymerization of acrylamide-assisted templates 13 and the impregnation/calcination method. 14 Due to the peculiarity of each synthetic route with the experimental conditions, β-Ag 2 MoO 4 crystals are able to exhibit different physicochemical properties, as photoluminescence, photocatalysis, antibacterial action against the DH5α bacteria and catalytic oxidation of elemental mercury, respectively.…”