Nuclear chemistry

Quantum mechanics

Wastewater

Catalysis

Magnetic field

Composite number

Engineering

Methyl orange

Magnetization

Metallurgy

Materials science

Coercivity

Magnetic separation

Telecommunications

Computer science

Chemical engineering

Environmental engineering

Physics

Organic chemistry

Degradation (telecommunications)

Filter paper

Condensed matter physics

Environmental science

Composite material

Chemistry

Photocatalysis

Journal of Colloid and Interface Science

Photocatalytic materials have been widely used to remove dyes from printing and dyeing wastewater. However, difficulty in recycling of photocatalysts is the great concern in the real catalytic applications, which significantly raises the application cost. This study developed a low-cost catalyst by loading magnetic Ni onto filter paper (FP) via an easy going in-situ reaction. The characterization results displayed that the Ni particles were uniformly anchored onto the FP. The [email protected] material presented a strong magnetic ability which was evidenced by a saturation magnetization (Ms) of 5.014 emu·g−1, a remanent magnetization (Mr) of 2.067 emu·g−1 and a coercivity (Hc) of 133.868 Oe. Meanwhile, the magnetic [email protected] material displayed a recyclable advantage in photocatalytic degradation of methyl orange (MO) via an external magnetic field. There existed an optimal photocatalytic degradation rate of 93.40% within 5 min when MO concentration was 15 mg·L−1 at pH 8.0. Three cycle experiments confirmed that the [email protected] possessed a satisfied stability and recycling ability. Moreover, the [email protected] material presented a strong antibacterial activity which can prevent it from being contaminated by microorganisms. The versatility of the newly proposed photocatalyst in this study demonstrated its great application prospect in dyeing wastewater treatment.

Facile preparation of recyclable magnetic Ni@filter paper composite materials for efficient photocatalytic degradation of methyl orange