Preparation and photocatalytic property of α-Fe2O3 hollow core/shell hierarchical nanostructures

Synthesis, Characterization, and Cytotoxicity of Iron Oxide Nanoparticles

“…They hold bear have great scientific interest due to its various extensive technological applications such as magnetic recording media, catalysis, pigments, electrode materials, gas sensors, optical devices, electromagnetic devices, lithium ion battery electrodes, sorbents, and drug delivery [8][9][10][11][12][13].…”

Synthesis, characterization and electrochemical properties of three-dimensionally ordered macroporous α-Fe2O3

“…4) revealed the most pore diameter was located at 40-120 nm, further indicating the macroporous structure of the ␣-Fe 2 O 3 . Meanwhile, the BET specific surface area of the ␣-Fe 2 O 3 was 87.3 m 2 /g, which was much higher than that of the reported ␣-Fe 2 O 3 nanorods (5.9-52.3 m 2 /g) [8,19], hollow spheres (41.1 m 2 /g) [9], or hollow core/shell hierarchical nanostructures (17.9 m 2 /g) [17]. Such 3DOM ␣-Fe 2 O 3 with high specific surface area would potentially give rise to superior applied performance.…”

“…Therefore, many endeavors, such as employing the nanosized material, have been done to overcome this drawback of ␣-Fe 2 O 3 based electrode materials. Over the past years, several approaches, including templating method, sol-gel strategy, gas-solid reaction technique and hydrothermal synthesis have been developed for the preparation of nanostructured ␣-Fe 2 O 3 with diverse morphologies and pore structures [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21]. Xie et al prepared ␣-Fe 2 O 3 nanostructures with uniform pores of less than 10 nm through an improved hydrothermal synthesis using FeOOH nanostructure as precursor [8].…”

“…Tartaj and Amarilla reported an approach combining the electrostatically driven self-assembly with specific adsorption and magnetically easy to disrupt soft aggregates for the production of ␣-Fe 2 O 3 nanorods with different textural properties and surface composition [13]. In addition, Zhu et al fabricated ␣-Fe 2 O 3 hollow core/shell hierarchical nanostructures with an average pore size of 28.4 nm by means of a solvothermal process combined with a thermal treatment [17].…”

γ-Fe2O3 and Fe3O4 magnetic hierarchically nanostructured hollow microspheres: Preparation, formation mechanism, magnetic property, and application in water treatment

“…Currently, the synthesis of nanostructured c-Fe 2 O 3 and Fe 3 O 4 hollow microspheres has aroused much interest among researchers. Recently, this group has developed a microwave-assisted solvothermal/conventional solvothermal synthesis of the precursor combined with precursor thermal conversion method for the preparation of c-Fe 2 O 3 , Fe 3 O 4 , and a-Fe 2 O 3 hierarchically nanostructured hollow microspheres assembled by nano-building blocks and investigated their various applications [33][34][35][36][37]. In this method, a microwave-assisted solvothermal or conventional solvothermal method is first adopted to prepare the ferrous precursor hollow microspheres assembled by nano-building blocks using iron salt and urea or NaOH in the solvent of ethylene glycol or a mixture of water and an ionic liquid.…”